Glass and glass sets

Abstract

This glass composition includes: a main component; and at least any one of the following additional components introduced into the glass composition at a ratio of more than 0 to 1500 mg / kg per each additional component: Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S.

Description

Glass composition and standard sample glass

[0001] The present invention relates to a glass composition and a standard sample glass.

[0002] In elemental analysis of solids using inductively coupled plasma (ICP) mass spectrometry, secondary ion mass spectrometry (SIMS), and X-ray fluorescence spectrometry (XRF), solid standard samples that enable the analysis of trace elements are required.

[0003] U.S. Patent No. 8,742,334

[0004] One aspect of the present invention is a glass composition comprising, in addition to the main components, at least one of the following additional components, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S, introduced in an amount of more than 0 to 1500 mg / kg per each of the additional components. ２ Content: 50 to 90%, Bi ２ O ３ , B ２ O ３ , GeO ２ , Al ２ O ３ , Ga ２ O ３ , Li ２ O, La ２ O ３ , BaO, ZnO and WO ３ The glass composition contains at least two of the following main components: TeO ２ Content rate: 55-90%, Bi ２ O ３ Content rate: 0-35%, B ２ O ３ Content rate: 0-20%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-20%, Ga ２ O ３ Content rate: 0-20%, Li２ O content: 0 to 10% and La ２ O ３ The glass composition has a content of 0 to 5%, and contains as an additive component at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, and W in an amount of more than 0 to 1500 mg / kg per each additive component. ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0-20%, B ２ O ３ Content rate: 0-20%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-20%, Ga ２ O ３ Content: 0-20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0 to 10% and WO ３ The glass composition has a content of 0 to 35%, and contains as an additive component at least one of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu in an amount of more than 0 to 1500 mg / kg per additive component. ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0-30%, B ２ O ３ Content: 0-20%, Al ２ O ３ Content rate: 0 to 20%, ZnO content rate: 0 to 20%, Li ２ O content: 0 to 10%, La ２ O ３ Content: 0-5% and WO ３ The glass composition has a content of 0 to 35%, and as the additive component, at least one of Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, and Bi is introduced in an amount of more than 0 to 1500 mg / kg per additive component, and the main component is other than the additive component. ２Content: 50-85%, Bi ２ O ３ Content rate: 0-35%, B ２ O ３ Content rate: 0-15%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-10%, Ga ２ O ３ Content: 0-20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0 to 10%, La ２ O ３ Content: 0-5% and WO ３ The glass composition has a content of 0 to 35%, and contains at least one of Au, Pt, Ag, Ir, Pd, Rh, Ru, and Re as an additive component in an amount of more than 0 to 1500 mg / kg per additive component. ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0-30%, B ２ O ３ Content rate: 0-15%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-20%, Ga ２ O ３ Content: 0-20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0 to 10%, La ２ O ３ Content: 0-5% and WO ３ The glass composition has a content of 0 to 35%, and at least one of F, Cl, Br, I, and S is introduced as an additive component in an amount of more than 0 to 1500 mg / kg per additive component.

[0005] Another aspect of the present invention is a standard sample for elemental analysis, which contains, as an added component, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh a first glass composition in which at least one of Ru, Re, F, Cl, Br, I, and S is introduced in an amount of 0 to 1500 mg / kg (first content) per each added component; and a second glass composition in which at least one of the added components is introduced in an amount of more than 0 to 1500 mg / kg (second content) per each added component, wherein the second content is greater than the first content.

[0006] Unless otherwise specified, the content of each major component in this specification is expressed as mass % of the total weight of the glass in terms of oxides. The oxide-equivalent composition here refers to a composition in which each component contained in the glass is expressed, assuming that the oxides, composite salts, etc. used as raw materials for the glass components are all decomposed and converted to oxides during melting, with the total mass of the oxides being 100%. Furthermore, unless otherwise specified, the content of added components is expressed in "mg / kg" as the content in the form of introduced oxide, chloride, fluoride, etc. "mg / kg" is synonymous with mass ppm.

[0007] The expression that the Q content is "0 to N%" includes cases where the Q component is not included and cases where the Q component is more than 0% but not more than N%.

[0008] The expression "devitrification resistance" refers to the resistance of glass to devitrification. Here, "devitrification" refers to a phenomenon in which glass loses transparency due to crystallization or phase separation that occurs when the temperature of glass is raised to or above its glass transition temperature or when the temperature is lowered from a molten state to or below its liquidus temperature.

[0009] An embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described below. The present embodiment is an example for explaining the present invention, and is not intended to limit the present invention to the following content.

[0010] The glass composition and standard glass sample according to this embodiment are made of tellurite glass as a base material, to which trace amounts (at the ppm level) of additive components are uniformly added. Therefore, they can be used as reference samples for local microanalysis in laser ablation, inductively coupled plasma (ICP) mass spectrometry, secondary ion mass spectrometry (SIMS), X-ray fluorescence spectrometry (XRF), and other techniques.

[0011] The glass composition according to this embodiment and the standard sample glass have a low melting temperature and high devitrification resistance stability. Conventionally manufactured glass compositions contain trace amounts of unintended elements as "impurities." The glass composition according to this embodiment is a glass composition that contains trace amounts of intended elements while suppressing the inclusion of unintended elements.

[0012] <Glass Composition> The glass composition according to this embodiment is a glass composition containing the main components and at least one of the following additional components: Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S, introduced in an amount of more than 0 to 1500 mg / kg per each of the additional components.

[0013] Furthermore, the glass composition according to this embodiment contains, in mass %, TeO ２ Content: 50 to 90%, Bi ２ O ３ , B ２ O ３ , GeO ２ , Al ２ O ３ , Ga ２ O ３ , Li ２ O, La ２ O ３ , BaO, ZnO and WO ３ The glass composition includes at least two of the group consisting of:

[0014] Furthermore, the glass composition according to this embodiment contains, in mass %, TeO ２ Content rate: 55-90%, Bi ２ O ３ Content rate: 0-35%, B ２ O ３ Content rate: 0-20%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-20%, Ga ２ O ３ Content rate: 0-20%, Li ２ O content: 0 to 10% and La ２ O ３ The glass composition has a content of 0 to 5%, and contains, as an additive component, at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, and W in an amount of more than 0 to 1500 mg / kg per additive component.

[0015] Furthermore, the glass composition according to this embodiment contains, in mass %, TeO ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0-20%, B ２ O ３ Content rate: 0-20%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-20%, Ga ２ O ３ Content: 0-20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0 to 10% and WO ３ The glass composition has a content of 0 to 35%, and contains, as an additive component, at least one of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu in an amount of more than 0 to 1500 mg / kg per additive component.

[0016] Furthermore, the glass composition according to this embodiment contains, in mass %, TeO ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0-30%, B２ O ３ Content: 0-20%, Al ２ O ３ Content rate: 0 to 20%, ZnO content rate: 0 to 20%, Li ２ O content: 0 to 10%, La ２ O ３ Content: 0-5% and WO ３ The glass composition has a content of 0 to 35%, and as the additional component, at least one of Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, and Bi is introduced in an amount of more than 0 to 1500 mg / kg per additional component, and the main component is other than the additional component.

[0017] Furthermore, the glass composition according to this embodiment contains, in mass %, TeO ２ Content rate: 50% to 85%, Bi ２ O ３ Content rate: 0% to 35%, B ２ O ３ Content rate: 0-15%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-10%, Ga ２ O ３ Content: 0-20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0 to 10%, La ２ O ３ Content: 0-5% and WO ３ The glass composition has a content of 0 to 35%, and at least one of Au, Pt, Ag, Ir, Pd, Rh, Ru, and Re is introduced as an additive component in an amount of more than 0 to 1500 mg / kg per additive component.

[0018] Furthermore, the glass composition according to this embodiment contains, in mass %, TeO ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0-30%, B ２ O ３ Content rate: 0-15%, GeO ２ Content: 0-20%, Al ２ O ３ Content rate: 0-20%, Ga２ O ３ Content: 0-20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0 to 10%, La ２ O ３ Content: 0-5% and WO ３ The glass composition has a content of 0 to 35%, and at least one of F, Cl, Br, I, and S is introduced as an additive component in an amount of more than 0 to 1500 mg / kg per additive component.

[0019] The component composition of the glass composition according to this embodiment will be described below.

[0020] The main components of the glass composition according to this embodiment are TeO ２ , Bi ２ O ３ , GeO ２ , Ga ２ O ３ , BaO, ZnO, WO ３ Generally, it refers to various oxides that can be used as the base material of glass, such as those mentioned above, and glass components other than added components.

[0021] TeO ２ is a main component that is essential in this embodiment, and is a component that lowers the melting temperature of the glass and improves the stability against devitrification. However, if this content is too high, the stability against devitrification decreases. From this viewpoint, TeO ２ The content of is 50% or more and 90% or less. The lower limit of this content is preferably 55%, more preferably 60%, and even more preferably 65%. The upper limit of this content is preferably 85%, more preferably 80%, and even more preferably 75%.

[0022] Bi ２ O ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２ The content of Bi is relatively reduced, and the stability against devitrification is deteriorated.２ O ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0023] B ２ O ３ is a component that is used as a main component in this embodiment and that enhances the stability of the glass against devitrification. However, if the content of this component is too high, the melting temperature will increase. From this viewpoint, B ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 4%, and even more preferably 6%. The upper limit of this content is preferably 16%, more preferably 14%, and even more preferably 10%.

[0024] GeO ２ is a component used as a main component in this embodiment, and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ is also an expensive raw material. ２ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0025] Al ２ O ３ is a component adopted as a main component in this embodiment, and is a component that enhances the devitrification resistance stability of the glass when added in an appropriate amount. However, if this content is too high, the melting temperature increases, and the devitrification resistance stability decreases. From this perspective, Al ２ O ３The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 10%. The upper limit of this content is preferably 17%, more preferably 14%, and even more preferably 12%.

[0026] Ga ２ O ３ is a component that is used as a main component in this embodiment and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ O ３ is also an expensive raw material. ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0027] BaO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ BaO is a component that can enhance the devitrification resistance stability of glass when coexisting with BaO. However, if its content is too high, the melting temperature of the glass increases. From this perspective, the BaO content is 0% or more and 30% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 28%, more preferably 25%, and even more preferably 22%.

[0028] ZnO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ZnO is a component that can enhance the devitrification resistance stability of glass when coexisting with ZnO. However, if the ZnO content is too high, the melting temperature of the glass increases. From this perspective, the ZnO content is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 6%, and even more preferably 10%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0029] Li ２ O is a component that is adopted as a main component in this embodiment, and is a component that lowers the melting temperature of the glass and improves the melting property. However, if the content of O is too high, the viscosity of the glass decreases and the stability against devitrification decreases. From this viewpoint, Li ２ The O content is 0% or more and 10% or less. The lower limit of this content is preferably 0.5%, more preferably 1.5%, and even more preferably 2.5%. The upper limit of this content is preferably 8%, more preferably 6%, and even more preferably 3.5%.

[0030] La ２ O ３ is a component adopted as a main component in the present embodiment, and adding an appropriate amount has the effect of improving the stability against devitrification. However, if the content is too high, the melting temperature of the glass increases, the melting property decreases, and the stability against devitrification also decreases. From this viewpoint, La ２ O ３ The content of is 0% or more and 5% or less. The lower limit of this content is preferably 0.4%, more preferably 0.8%, and even more preferably 1.2%. The upper limit of this content is preferably 4%, more preferably 3%, and even more preferably 2%.

[0031] WO ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２From this viewpoint, the content of WO is relatively decreased, and the stability against devitrification is deteriorated. ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 15%, more preferably 20%, and even more preferably 25%. The upper limit of this content is preferably 33%, more preferably 30%, and even more preferably 27%.

[0032] In addition to the above-mentioned main components, other main components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment. ２ In addition, when any of the above-mentioned main components is not adopted as a main component in this embodiment, the component not adopted (for example, Zn, W, La, Ba, Ga, Ge, Bi, etc.) may be introduced into the glass composition in this embodiment as an additive component.

[0033] Essential component TeO ２ The content of the second highest major component after the first is 10% or more and 35% or less by mass. The lower limit of this content is preferably 15%, more preferably 18%, and even more preferably 21%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0034] The glass composition according to this embodiment may contain elements added depending on the purpose of elemental analysis, etc. The elements to be added are divided into a first additional component group to a fifth additional component group.

[0035] The first additional component group (transition elements) is preferably Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, etc., and is introduced into the glass composition according to this embodiment in the form of oxide, hydroxide, carbonate, nitrate, etc.

[0036] The second additional component group (rare earth elements) is preferably Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, etc., and is introduced into the glass composition according to this embodiment in the form of oxide, hydroxide, carbonate, nitrate, etc.

[0037] The third additional component group is preferably Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, etc., and is introduced into the glass composition according to this embodiment in the form of oxide, hydroxide, carbonate, nitrate, etc.

[0038] The fourth additional component group (noble metal elements) is preferably Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, etc., and is introduced into the glass composition according to this embodiment in the form of oxide, chloride, etc.

[0039] The fifth additional component group (non-metallic elements) is preferably F, Cl, Br, I, S, etc., and is introduced into the glass composition according to this embodiment in the form of fluoride, chloride, bromide, iodide, sulfide, sulfate, etc.

[0040] Furthermore, one to sixteen types of additive components are introduced into one glass depending on the purpose. The number of additive components introduced is preferably three, more preferably two, and even more preferably one. Furthermore, multiple additive components selected from multiple additive component groups may be introduced into one glass. The additive components must be elements other than the cations in the oxides of the main components.

[0041] The additive components are each introduced into one glass in a mass of more than 0 to 1500 mg / kg (= ppm by mass). The lower limit of the amount of the additive component introduced is preferably 15 mg / kg, more preferably 30 mg / kg, and even more preferably 40 mg / kg. The upper limit of the amount of the additive component introduced is preferably 1400 mg / kg, more preferably 1250 mg / kg, and even more preferably 1050 mg / kg.

[0042] In addition to the above-mentioned components, other optional components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment.

[0043] <Glass composition containing first additional component group> In particular, in the glass composition containing the first additional component group, TeO ２is a main component that is essential in this embodiment, and is a component that lowers the melting temperature of the glass and improves the stability against devitrification. However, if this content is too high, the stability against devitrification decreases. From this viewpoint, TeO ２ The content of is 55% or more and 90% or less. The lower limit of this content is preferably 60%, more preferably 65%, and even more preferably 70%. The upper limit of this content is preferably 85%, more preferably 80%, and even more preferably 75%.

[0044] Bi ２ O ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２ The content of Bi is relatively reduced, and the stability against devitrification is deteriorated. ２ O ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0045] B ２ O ３ is a component that is used as a main component in this embodiment and that enhances the stability of the glass against devitrification. However, if the content of this component is too high, the melting temperature will increase. From this viewpoint, B ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 4%, and even more preferably 6%. The upper limit of this content is preferably 16%, more preferably 14%, and even more preferably 10%.

[0046] GeO ２is a component used as a main component in this embodiment, and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ is also an expensive raw material. ２ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0047] Al ２ O ３ is a component adopted as a main component in this embodiment, and is a component that enhances the devitrification resistance stability of the glass when added in an appropriate amount. However, if this content is too high, the melting temperature increases, and the devitrification resistance stability decreases. From this perspective, Al ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 10%. The upper limit of this content is preferably 17%, more preferably 14%, and even more preferably 12%.

[0048] Ga ２ O ３ is a component that is used as a main component in this embodiment and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ O ３ is also an expensive raw material. ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0049] Li ２O is a component that is adopted as a main component in this embodiment, and is a component that lowers the melting temperature of the glass and improves the melting property. However, if the content of O is too high, the viscosity of the glass decreases and the stability against devitrification decreases. From this viewpoint, Li ２ The O content is 0% or more and 10% or less. The lower limit of this content is preferably 0.5%, more preferably 1.5%, and even more preferably 2.5%. The upper limit of this content is preferably 8%, more preferably 6%, and even more preferably 3.5%.

[0050] La ２ O ３ is a component adopted as a main component in the present embodiment, and adding an appropriate amount has the effect of improving the stability against devitrification. However, if the content is too high, the melting temperature of the glass increases, the melting property decreases, and the stability against devitrification also decreases. From this viewpoint, La ２ O ３ The content of is 0% or more and 5% or less. The lower limit of this content is preferably 0.4%, more preferably 0.8%, and even more preferably 1.2%. The upper limit of this content is preferably 4%, more preferably 3%, and even more preferably 2%.

[0051] In addition to the above-mentioned main components, other main components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment. ２ In addition, when any of the above-mentioned main components is not adopted as a main component in this embodiment, the component not adopted may be introduced into the glass composition in this embodiment as an additive component.

[0052] Essential component TeO ２ The content of the second highest major component after the first is 10% or more and 35% or less by mass. The lower limit of this content is preferably 15%, more preferably 18%, and even more preferably 21%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0053] <Glass composition containing second additional component group> In particular, in the glass composition containing the second additional component group, TeO ２ is a main component that is essential in this embodiment, and is a component that lowers the melting temperature of the glass and improves the stability against devitrification. However, if this content is too high, the stability against devitrification decreases. From this viewpoint, TeO ２ The content of is 50% or more and 90% or less. The lower limit of this content is preferably 55%, more preferably 60%, and even more preferably 65%. The upper limit of this content is preferably 80%, more preferably 75%, and even more preferably 70%.

[0054] Bi ２ O ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２ The content of Bi is relatively reduced, and the stability against devitrification is deteriorated. ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 3%, more preferably 7%, and even more preferably 10%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 13%.

[0055] B ２ O ３ is a component that is used as a main component in this embodiment and that enhances the stability of the glass against devitrification. However, if the content of this component is too high, the melting temperature will increase. From this viewpoint, B ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 4%, and even more preferably 6%. The upper limit of this content is preferably 16%, more preferably 14%, and even more preferably 10%.

[0056] GeO２ is a component used as a main component in this embodiment, and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ is also an expensive raw material. ２ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0057] Al ２ O ３ is a component adopted as a main component in this embodiment, and is a component that enhances the devitrification resistance stability of the glass when added in an appropriate amount. However, if this content is too high, the melting temperature increases, and the devitrification resistance stability decreases. From this perspective, Al ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 10%. The upper limit of this content is preferably 17%, more preferably 14%, and even more preferably 12%.

[0058] Ga ２ O ３ is a component that is used as a main component in this embodiment and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ O ３ is also an expensive raw material. ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0059] BaO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ BaO is a component that can enhance the devitrification resistance stability of glass when coexisting with BaO. However, if its content is too high, the melting temperature of the glass increases. From this perspective, the BaO content is 0% or more and 30% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 28%, more preferably 25%, and even more preferably 22%.

[0060] ZnO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ ZnO is a component that can enhance the devitrification resistance stability of glass when coexisting with ZnO. However, if the ZnO content is too high, the melting temperature of the glass increases. From this perspective, the ZnO content is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 6%, and even more preferably 10%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0061] Li ２ O is a component that is adopted as a main component in this embodiment, and is a component that lowers the melting temperature of the glass and improves the melting property. However, if the content of O is too high, the viscosity of the glass decreases and the stability against devitrification decreases. From this viewpoint, Li ２ The O content is 0% or more and 10% or less. The lower limit of this content is preferably 1%, more preferably 3%, and even more preferably 5%. The upper limit of this content is preferably 9%, more preferably 8%, and even more preferably 6%.

[0062] WO ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high,２ From this viewpoint, the content of WO is relatively decreased, and the stability against devitrification is deteriorated. ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 15%, more preferably 20%, and even more preferably 25%. The upper limit of this content is preferably 33%, more preferably 30%, and even more preferably 27%.

[0063] In addition to the above-mentioned main components, other main components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment. ２ In addition, when any of the above-mentioned main components is not adopted as a main component in this embodiment, the component not adopted may be introduced into the glass composition in this embodiment as an additive component.

[0064] Essential component TeO ２ The content of the second highest major component after the first is 10% or more and 35% or less by mass. The lower limit of this content is preferably 15%, more preferably 18%, and even more preferably 21%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0065] <Glass composition containing third additional component group> In particular, in the glass composition containing the third additional component group, TeO ２ is a main component that is essential in this embodiment, and is a component that lowers the melting temperature of the glass and improves the stability against devitrification. However, if this content is too high, the stability against devitrification decreases. From this viewpoint, TeO ２ The content of is 50% or more and 90% or less. The lower limit of this content is preferably 60%, more preferably 65%, and even more preferably 70%. The upper limit of this content is preferably 85%, more preferably 80%, and even more preferably 75%.

[0066] Bi ２ O ３is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２ The content of Bi is relatively reduced, and the stability against devitrification is deteriorated. ２ O ３ The content of is 0% or more and 30% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 28%, more preferably 26%, and even more preferably 24%.

[0067] B ２ O ３ is a component that is used as a main component in this embodiment and that enhances the stability of the glass against devitrification. However, if the content of this component is too high, the melting temperature will increase. From this viewpoint, B ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 4%, and even more preferably 6%. The upper limit of this content is preferably 16%, more preferably 14%, and even more preferably 10%.

[0068] Al ２ O ３ is a component adopted as a main component in this embodiment, and is a component that enhances the devitrification resistance stability of the glass when added in an appropriate amount. However, if this content is too high, the melting temperature increases, and the devitrification resistance stability decreases. From this perspective, Al ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 10%. The upper limit of this content is preferably 17%, more preferably 14%, and even more preferably 12%.

[0069] ZnO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO２ ZnO is a component that can enhance the devitrification resistance stability of glass when coexisting with ZnO. However, if the ZnO content is too high, the melting temperature of the glass increases. From this perspective, the ZnO content is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 6%, and even more preferably 10%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0070] Li ２ O is a component that is adopted as a main component in this embodiment, and is a component that lowers the melting temperature of the glass and improves the melting property. However, if the content of O is too high, the viscosity of the glass decreases and the stability against devitrification decreases. From this viewpoint, Li ２ The O content is 0% or more and 10% or less. The lower limit of this content is preferably 0.5%, more preferably 1.5%, and even more preferably 2.5%. The upper limit of this content is preferably 8%, more preferably 6%, and even more preferably 3.5%.

[0071] La ２ O ３ is a component adopted as a main component in the present embodiment, and adding an appropriate amount has the effect of improving the stability against devitrification. However, if the content is too high, the melting temperature of the glass increases, the melting property decreases, and the stability against devitrification also decreases. From this viewpoint, La ２ O ３ The content of is 0% or more and 5% or less. The lower limit of this content is preferably 0.4%, more preferably 0.8%, and even more preferably 1.2%. The upper limit of this content is preferably 4%, more preferably 3%, and even more preferably 2%.

[0072] WO ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２From this viewpoint, the content of WO is relatively decreased, and the stability against devitrification is deteriorated. ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 15%, more preferably 20%, and even more preferably 25%. The upper limit of this content is preferably 33%, more preferably 30%, and even more preferably 27%.

[0073] In addition to the above-mentioned main components, other main components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment. ２ In addition, when any of the above-mentioned main components is not adopted as a main component in this embodiment, the component not adopted may be introduced into the glass composition in this embodiment as an additive component.

[0074] Essential component TeO ２ The content of the second highest major component after the first is 10% or more and 35% or less by mass. The lower limit of this content is preferably 15%, more preferably 18%, and even more preferably 21%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0075] <Glass composition containing fourth additional component group> In particular, in the glass composition containing the fourth additional component group, TeO ２ is a main component that is essential in this embodiment, and is a component that lowers the melting temperature of the glass and improves the stability against devitrification. However, if this content is too high, the stability against devitrification decreases. From this viewpoint, TeO ２ The content of is 50% or more and 85% or less. The lower limit of this content is preferably 60%, more preferably 65%, and even more preferably 70%. The upper limit of this content is preferably 80%, more preferably 77%, and even more preferably 74%.

[0076] Bi ２ O ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and２ However, if the content of TeO is too high, ２ The content of Bi is relatively reduced, and the stability against devitrification is deteriorated. ２ O ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0077] B ２ O ３ is a component that is used as a main component in this embodiment and that enhances the stability of the glass against devitrification. However, if the content of this component is too high, the melting temperature will increase. From this viewpoint, B ２ O ３ The content of is 0% or more and 15% or less. The lower limit of this content is preferably 2%, more preferably 4%, and even more preferably 6%. The upper limit of this content is preferably 12%, more preferably 10%, and even more preferably 8%.

[0078] GeO ２ is a component used as a main component in this embodiment, and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ is also an expensive raw material. ２ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0079] Al ２ O ３is a component adopted as a main component in this embodiment, and is a component that enhances the devitrification resistance stability of the glass when added in an appropriate amount. However, if this content is too high, the melting temperature increases, and the devitrification resistance stability decreases. From this perspective, Al ２ O ３ The content of is 0% or more and 10% or less. The lower limit of this content is preferably 0.3%, more preferably 0.7%, and even more preferably 1%. The upper limit of this content is preferably 7%, more preferably 5%, and even more preferably 2%.

[0080] Ga ２ O ３ is a component that is used as a main component in this embodiment and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ O ３ is also an expensive raw material. ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0081] WO ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２ From this viewpoint, the content of WO is relatively decreased, and the stability against devitrification is deteriorated. ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 15%, more preferably 20%, and even more preferably 25%. The upper limit of this content is preferably 33%, more preferably 30%, and even more preferably 27%.

[0082] Li ２O is a component that is adopted as a main component in this embodiment, and is a component that lowers the melting temperature of the glass and improves the melting property. However, if the content of O is too high, the viscosity of the glass decreases and the stability against devitrification decreases. From this viewpoint, Li ２ The O content is 0% or more and 10% or less. The lower limit of this content is preferably 0.5%, more preferably 1.5%, and even more preferably 2.5%. The upper limit of this content is preferably 8%, more preferably 6%, and even more preferably 3.5%.

[0083] La ２ O ３ is a component adopted as a main component in the present embodiment, and adding an appropriate amount has the effect of improving the stability against devitrification. However, if the content is too high, the melting temperature of the glass increases, the melting property decreases, and the stability against devitrification also decreases. From this viewpoint, La ２ O ３ The content of is 0% or more and 5% or less. The lower limit of this content is preferably 0.4%, more preferably 0.8%, and even more preferably 1.2%. The upper limit of this content is preferably 4%, more preferably 3%, and even more preferably 2%.

[0084] BaO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ BaO is a component that can enhance the devitrification resistance stability of glass when coexisting with BaO. However, if its content is too high, the melting temperature of the glass increases. From this perspective, the BaO content is 0% or more and 30% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 28%, more preferably 25%, and even more preferably 22%.

[0085] ZnO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ZnO is a component that can enhance the devitrification resistance stability of glass when coexisting with ZnO. However, if the ZnO content is too high, the melting temperature of the glass increases. From this perspective, the ZnO content is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 6%, and even more preferably 10%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0086] In addition to the above-mentioned main components, other main components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment. ２ In addition, when any of the above-mentioned main components is not adopted as a main component in this embodiment, the component not adopted may be introduced into the glass composition in this embodiment as an additive component.

[0087] Essential component TeO ２ The content of the second highest major component after the first is 10% or more and 35% or less by mass. The lower limit of this content is preferably 15%, more preferably 18%, and even more preferably 21%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0088] <Glass composition containing fifth additional component group> In particular, in the glass composition containing the fifth additional component group, TeO ２ is a main component that is essential in this embodiment, and is a component that lowers the melting temperature of the glass and improves the stability against devitrification. However, if this content is too high, the stability against devitrification decreases. From this viewpoint, TeO ２ The content of is 50% or more and 90% or less. The lower limit of this content is preferably 60%, more preferably 65%, and even more preferably 70%. The upper limit of this content is preferably 85%, more preferably 80%, and even more preferably 75%.

[0089] Bi ２ O ３is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２ However, if the content of TeO is too high, ２ The content of Bi is relatively reduced, and the stability against devitrification is deteriorated. ２ O ３ The content of is 0% or more and 30% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 28%, more preferably 26%, and even more preferably 24%.

[0090] B ２ O ３ is a component that is used as a main component in this embodiment and that enhances the stability of the glass against devitrification. However, if the content of this component is too high, the melting temperature will increase. From this viewpoint, B ２ O ３ The content of is 0% or more and 15% or less. The lower limit of this content is preferably 2%, more preferably 4%, and even more preferably 6%. The upper limit of this content is preferably 12%, more preferably 10%, and even more preferably 8%.

[0091] GeO ２ is a component used as a main component in this embodiment, and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ is also an expensive raw material. ２ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0092] Al ２ O ３is a component adopted as a main component in this embodiment, and is a component that enhances the devitrification resistance stability of the glass when added in an appropriate amount. However, if this content is too high, the melting temperature increases, and the devitrification resistance stability decreases. From this perspective, Al ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 10%. The upper limit of this content is preferably 17%, more preferably 14%, and even more preferably 12%.

[0093] Ga ２ O ３ is a component that is used as a main component in this embodiment and is a component that improves the devitrification resistance stability of the glass. However, if this content is too high, the melting temperature of the glass will increase. ２ O ３ is also an expensive raw material. ２ O ３ The content of is 0% or more and 20% or less. The lower limit of this content is preferably 4%, more preferably 8%, and even more preferably 12%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0094] Li ２ O is a component that is adopted as a main component in this embodiment, and is a component that lowers the melting temperature of the glass and improves the melting property. However, if the content of O is too high, the viscosity of the glass decreases and the stability against devitrification decreases. From this viewpoint, Li ２ The O content is 0% or more and 10% or less. The lower limit of this content is preferably 0.5%, more preferably 1.5%, and even more preferably 2.5%. The upper limit of this content is preferably 8%, more preferably 6%, and even more preferably 3.5%.

[0095] La ２ O ３is a component adopted as a main component in the present embodiment, and adding an appropriate amount has the effect of improving the stability against devitrification. However, if the content is too high, the melting temperature of the glass increases, the melting property decreases, and the stability against devitrification also decreases. From this viewpoint, La ２ O ３ The content of is 0% or more and 5% or less. The lower limit of this content is preferably 0.4%, more preferably 0.8%, and even more preferably 1.2%. The upper limit of this content is preferably 4%, more preferably 3%, and even more preferably 2%.

[0096] BaO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ BaO is a component that can enhance the devitrification resistance stability of glass when coexisting with BaO. However, if its content is too high, the melting temperature of the glass increases. From this perspective, the BaO content is 0% or more and 30% or less. The lower limit of this content is preferably 10%, more preferably 15%, and even more preferably 20%. The upper limit of this content is preferably 28%, more preferably 25%, and even more preferably 22%.

[0097] ZnO is a component that is used as a main component in this embodiment, and improves the stability against devitrification of the glass. TeO ２ ZnO is a component that can enhance the devitrification resistance stability of glass when coexisting with ZnO. However, if the ZnO content is too high, the melting temperature of the glass increases. From this perspective, the ZnO content is 0% or more and 20% or less. The lower limit of this content is preferably 2%, more preferably 6%, and even more preferably 10%. The upper limit of this content is preferably 18%, more preferably 16%, and even more preferably 14%.

[0098] WO ３ is a component used as a main component in this embodiment, which lowers the melting temperature of the glass and ２However, if the content of TeO is too high, ２ From this viewpoint, the content of WO is relatively decreased, and the stability against devitrification is deteriorated. ３ The content of is 0% or more and 35% or less. The lower limit of this content is preferably 15%, more preferably 20%, and even more preferably 25%. The upper limit of this content is preferably 33%, more preferably 30%, and even more preferably 27%.

[0099] In addition to the above-mentioned main components, other main components may be added within a range that does not interfere with achieving the intended glass composition in this embodiment. ２ In addition, when any of the above-mentioned main components is not adopted as a main component in this embodiment, the component not adopted may be introduced into the glass composition in this embodiment as an additive component.

[0100] Essential component TeO ２ The content of the second highest major component after the first is 10% or more and 35% or less by mass. The lower limit of this content is preferably 15%, more preferably 18%, and even more preferably 21%. The upper limit of this content is preferably 30%, more preferably 27%, and even more preferably 24%.

[0101] <Standard Sample Glass> The standard sample glass according to this embodiment is a standard sample for elemental analysis containing the above-described glass composition, and contains, as additive components, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, and Ag. , Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S are incorporated in an amount of 0 to 1500 mg / kg (first content) per each additive component, and a second glass composition in which at least one of the additive components is incorporated in an amount of more than 0 to 1500 mg / kg (second content) per each additive component, wherein the second content is greater than the first content.

[0102] The additive component is introduced into the first glass composition in an amount of 0 to 1500 mg / kg (first content) (first additive component). The lower limit of the first content is preferably 0 mg / kg. Furthermore, from the viewpoint of the lower limit of quantification of analytical methods and impurities from raw materials, a content of 1 mg / kg or less is considered to be essentially 0 mg / kg. The upper limit of the first content is preferably 15 mg / kg, more preferably 10 mg / kg, and even more preferably 5 mg / kg.

[0103] The additive component is introduced into the second glass composition in an amount of more than 0 to 1500 mg / kg (second content). The lower limit of the second content is preferably 15 mg / kg, more preferably 30 mg / kg, and even more preferably 40 mg / kg. The upper limit of the second content is preferably 500 mg / kg, more preferably 100 mg / kg, and even more preferably 60 mg / kg.

[0104] The second content of the additive component contained in the second glass composition is preferably greater than the first content of the additive component contained in the first glass composition. Furthermore, in order to function as a standard sample glass, the first and second additive components are preferably the same. Furthermore, the first and second glass compositions may have the same type of component that constitutes the major component, and may also have the same composition of the major component (ratio of the major component). Note that when the composition of the major component in the second glass composition is the same as that in the first glass composition, any deviation in the composition of the major component due to an increase in the content of the additive component is considered to be substantially the same.

[0105] The standard sample glass preferably contains a third glass composition in addition to the first and second glass compositions.

[0106] The additive component is introduced into the third glass composition in an amount of from greater than 0 to 1500 mg / kg (third content). The lower limit of the third content is preferably 500 mg / kg, more preferably 750 mg / kg, and even more preferably 950 mg / kg. The upper limit of the third content is preferably 1400 mg / kg, more preferably 1250 mg / kg, and even more preferably 1050 mg / kg.

[0107] The third content of the additive component contained in the third glass composition is preferably greater than the first content of the additive component contained in the first glass composition and the second content of the additive component contained in the second glass composition. Furthermore, in order to function as a standard sample glass, the first, second, and third additive components are preferably the same. Furthermore, the first, second, and third glass compositions may have the same type of component as the major component, and may also have the same composition of the major component (ratio of the major component). Note that when the composition of the major component in the second and third glass compositions is the same as that in the first glass composition, any deviation in the composition of the major component due to an increase in the content of the additive component is considered to be substantially the same.

[0108] In addition to the above-described components, other optional components may be added within a range that does not interfere with achieving the first, second, and third glass compositions targeted in this embodiment. The standard sample glass described above had three glass compositions with different contents of added components. It is sufficient for the standard sample glass of this embodiment to include at least two glasses with different contents.

[0109] <Method for manufacturing glass composition> Hereinafter, a method for manufacturing the glass composition according to this embodiment and the first glass composition, the second glass composition, and the third glass composition included in the standard sample glass according to this embodiment will be described.

[0110] A method for producing the glass composition according to this embodiment, and the first glass composition, the second glass composition, and the third glass composition included in the standard sample glass according to this embodiment, includes: i) a step of immersing a crucible and tools used in melting in an acidic solution for 1 to 24 hours to clean them; ii) a step of rinsing the crucible and tools used in melting with purified water; iii) a step of drying the crucible and tools used in melting; iv) a step of mixing the main component and any one of the additional components from the first to fifth additional component groups in the crucible, and melting the mixture at a temperature of 700 to 900°C for 30 minutes to 8 hours while stirring with the tools to obtain a mixture; and v) a step of pouring the mixture into a mold and allowing it to cool slowly.

[0111] The types, addition rates, and addition amounts of the main components and added components follow the explanations for the glass composition and standard sample glass described above.

[0112] Steps i) to iii) To prevent the incorporation of impurities, all of the tools used in the melting process, such as the crucible, lid, and stirring blades, are preferably immersed in an acidic solution in advance for about 1 to 24 hours, and more preferably for about 5 to 16 hours. The acidic solution is preferably an acidic solution containing at least one of hydrofluoric acid, hydrochloric acid, nitric acid, and sulfuric acid, and more preferably a hydrofluoric acid solution with a concentration of 30 to 50%. The immersed tools used in the melting process, such as the crucible, lid, and stirring blades, are washed, rinsed with purified water, and then dried.

[0113] The tools used in melting, such as the crucible, lid, and stirring blades, contain at least one metal selected from platinum, gold, iridium, and quartz, because they have low reactivity with the glass melt, suppress erosion of the crucible by the melt, and have high resistance to acid. When the additive component is a noble metal, it is preferable to use tools made of a material different from that of the additive component.

[0114] Step iv) The main oxide components are weighed out so as to obtain the component composition (mass %) of the glass composition according to the present embodiment described above.

[0115] After the weighed main components are mixed and placed in a crucible, a certain amount of the target element is added depending on the purpose. The target element can be introduced by directly adding raw materials such as oxides, hydroxides, carbonates, and nitrates, or by dripping a certain amount of a nitrate aqueous solution containing the target element. When using the dripping method, the solution is not limited to a nitrate aqueous solution, and any solution in which the target element is stably dissolved can be used.

[0116] The additive components can be selected from 1 to 16 elements and added to a glass composition.

[0117] The crucible is covered with a lid and melted at a temperature of 700 to 900°C, preferably 750 to 850°C, for 30 minutes to 8 hours, preferably 1 to 5 hours, and then stirred to homogenize.

[0118] Step v) After cooling to an appropriate temperature, the mixture is poured into a mold or the like and slowly cooled to obtain a glass sample. Vitrification is judged by visually confirming that no crystallization has occurred.

[0119] <Characteristics of Glass Compositions> Preferred characteristics of the glass composition according to this embodiment and the first, second, and third glass compositions contained in the standard sample glass according to this embodiment will be described below. The first, second, and third glass compositions differ in the content of additive components.

[0120] The melting temperatures of the glass composition according to this embodiment and the first, second, and third glass compositions included in the standard sample glass according to this embodiment are 900° C. or lower, from the viewpoint of preventing the target elements from volatilizing during melting and causing fluctuations in the concentration levels of the target elements. The upper limit of the melting temperature is preferably 850° C., and more preferably 800° C.

[0121] The glass composition according to this embodiment, and the first glass composition, the second glass composition, and the third glass composition contained in the standard sample glass according to this embodiment have devitrification resistance stability, and further contain trace amounts of intended elements while suppressing the inclusion of unintended elements.

[0122] The glass composition according to the present embodiment having the above-described properties, and the first, second, and third glass compositions included in the standard sample glass according to the present embodiment can be used as solid standard samples in, for example, elemental analysis. By using glass compositions with different concentrations of additive components, calibration curves can be created as standard samples for inductively coupled plasma (ICP) mass spectrometry, secondary ion mass spectrometry (SIMS), X-ray fluorescence spectrometry (XRF), and the like.

[0123] Next, examples of the present invention will be described, but the present invention is not limited to these examples.

[0124] <Preparation of Glass Composition> The glass composition according to each example was prepared by the following procedure.

[0125] First, glass raw materials such as oxides and carbonates, which are the main components contained, were weighed out to a total weight of 100 g so as to obtain the chemical compositions (mass %) shown in Tables 1 to 5.

[0126] The additive components were introduced by directly adding raw materials containing the additive components.

[0127] The first group of additive components was introduced into the composition in the form of oxides, carbonates, etc.

[0128] The second group of additive components was introduced into the composition in the form of oxides or the like.

[0129] The third group of additive components was introduced into the composition in the form of oxides, carbonates, etc.

[0130] The fourth additional component group was introduced into the glass composition in the form of oxides, chlorides, etc.

[0131] The fifth additional component group was introduced into the glass composition in the form of fluoride, chloride, bromide, iodide, sulfate, or the like.

[0132] Next, the weighed glass raw materials were mixed and charged into a platinum crucible (a quartz crucible when the additive components included the fourth additive component group), and melted at a temperature of 750 to 850°C for about 1 hour, followed by stirring and homogenization. The mixture was then cooled to an appropriate temperature, poured into a mold, etc., and slowly cooled to obtain each glass sample. Vitrification was judged by visually confirming that no crystallization had occurred.

[0133] To prevent contamination with impurities, the platinum crucible or quartz crucible used was washed in advance with hydrochloric acid or pure water.

[0134] <Quantitative analysis of glass compositions of the first, second, third and fourth additive component groups> The surface of each prepared glass sample was first washed with dilute acid and then crushed. The crushed glass sample was dissolved in an acidic solution and then diluted with pure water to a constant volume to obtain a test solution. <Quantitative analysis of glass composition of the fifth additive component group> The glass sample was crushed and used for combustion ion chromatography testing.

[0135] For the first, second, third, and fourth additive component groups, the test solution was quantitatively analyzed for additive components using an ICP optical emission spectrometer (Hitachi High-Tech PS3500DDII) or an ICP mass spectrometer (Agilent 7700x). A calibration curve over an appropriate concentration range was prepared using a liquid standard sample with a known concentration of the additive element, and the amount of the additive element in the analyzed glass was determined. For the fifth additive component group, the powder sample was quantitatively analyzed for additive components using an ion chromatograph (Metrohm 940 Professional IC Vario) to generate gas components. A calibration curve over an appropriate concentration range was prepared using a standard sample with a known concentration of the additive ion, and the amount of the additive ion in the analyzed glass was determined.

[0136] Table 1 shows the first added component group (Examples 1 to 9), Table 2 shows the second added component group (Examples 10 to 16), Table 3 shows the third added component group (Examples 17 to 21), Table 4 shows the fourth added component group (Examples 22 to 28), and Table 5 shows the fifth added component group (Examples 29 to 33). The component composition (by mass), ICP measurement values, or combustion ion chromatography quantitative values ​​of each example are shown.

[0137]

[0138]

[0139]

[0140]

[0141]

[0142] From the above, it was confirmed that the glass compositions of the respective Examples were all vitrified.

[0143] Furthermore, it was confirmed from the quantitative values ​​of ICP and the like of the glass compositions of the examples that the intended added elements were introduced into the glass compositions in the intended amounts.

Claims

1. In mass %, TeO 2 content: 50 to 90%; Contains at least two of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3; A glass containing more than 0 to 1500 mg / kg of at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S.

2. In mass %, Bi ２ O ３ Content rate: 0~35%, B ２ O ３ Content rate: 0~20%, Geo ２ Content rate: 0~20%, A ２ O ３ Content rate: 0~20%, Ga ２ O ３ Content rate: 0~20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0-10%, La ２ O ３ Content rate: 0-5%, WO ３ The glass according to claim 1, wherein the content is 0 to 35%.

3. The glass according to claim 1, comprising three of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3.

4. The glass according to claim 1 or 2, containing 10 to 35% by mass of any of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3.

5. In mass %, TeO ２ Content rate: 55-90%, Bi ２ O ３ Content rate: 0~35%, B ２ O ３ Content rate: 0~20%, Geo ２ Content rate: 0~20%, A ２ O ３ Content rate: 0~20%, Ga ２ O ３ Content rate: 0~20%, Li ２ O content: 0-10% and La ２ O ３ Content: 0 to 5%; The glass according to claim 1 or 2, containing more than 0 to 1500 mg / kg of at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, and W.

6. In mass %, TeO ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0~20%, B ２ O ３ Content rate: 0~20%, Geo ２ Content rate: 0~20%, A ２ O ３ Content rate: 0~20%, Ga ２ O ３ Content rate: 0~20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0-10% and WO ３ Content: 0 to 35%; The glass according to claim 1 or 2, containing more than 0 to 1500 mg / kg of at least one of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu.

7. In mass %, TeO ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0~30%, B ２ O ３ Content rate: 0~20%, A ２ O ３ Content rate: 0~20%, ZnO content: 0-20%, Li ２ O content: 0-10%, La ２ O ３ Content: 0-5% and WO ３ Content: 0 to 35%; The glass according to claim 1 or 2, containing more than 0 to 1500 mg / kg of at least one of Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, and Bi.

8. In mass %, TeO ２ Content rate: 50-85%, Bi ２ O ３ Content rate: 0~35%, B ２ O ３ Content rate: 0-15%, Geo ２ Content rate: 0~20%, A ２ O ３ Content rate: 0-10%, Ga ２ O ３ Content rate: 0~20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0-10%, La ２ O ３ Content: 0-5% and WO ３ Content: 0 to 35%; The glass according to claim 1 or 2, containing more than 0 to 1500 mg / kg of at least one of Au, Pt, Ag, Ir, Pd, Rh, Ru, and Re.

9. In mass %, TeO ２ Content rate: 50-90%, Bi ２ O ３ Content rate: 0~30%, B ２ O ３ Content rate: 0-15%, Geo ２ Content rate: 0~20%, A ２ O ３ Content rate: 0~20%, Ga ２ O ３ Content rate: 0~20%, BaO content: 0-30%, ZnO content: 0-20%, Li ２ O content: 0-10%, La ２ O ３ Content: 0-5% and WO ３ Content: 0 to 35%; The glass according to claim 1 or 2, containing at least one of F, Cl, Br, I and S in an amount of more than 0 to 1500 mg / kg per component.

10. 3. The glass of claim 1, which is a standard sample for elemental analysis.

11. 11. The glass of claim 10, which is a standard for inductively coupled plasma (ICP) mass spectrometry, secondary ion mass spectrometry (SIMS), and / or X-ray fluorescence spectrometry (XRF).

12. In mass %, TeO 2 content: 50 to 90%; Contains at least two of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3; a first glass including a first component, which is at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S, in a first content; In mass percent, TeO 2 content: 50 to 90%; Contains at least two of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3; a second glass including a second component, the second component being at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S, in a second content; the first component and the second component are the same; The first content is 0 mg / kg or more and 1500 mg / kg or less, The second content is greater than 0 mg / kg and not greater than 1500 mg / kg; The set of glasses, wherein the second content is greater than the first content.

13. The first glass and the second glass are In mass percent, Bi 2 O 3 content: 0 to 35%, B 2 O 3 content: 0 to 20%, GeO 2 content: 0-20%, Al 2 O 3 content: 0 to 20%, Ga 2 O 3 content: 0 to 20%, BaO content: 0-30%, ZnO content: 0-20%, Li 2 O content: 0 to 10%, La 2 O 3 content: 0 to 5%, The set of glasses according to claim 12, wherein WO 3 content is 0 to 35%.

14. The first glass and the second glass are 14. The set of glasses according to claim 12 or 13, comprising three of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3.

15. The first glass and the second glass are The glass set according to claim 12 or 13, containing 10 to 35% by mass of any of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3.

16. In mass %, TeO 2 content: 50 to 90%; Contains at least two of Bi2O3, B2O3, GeO2, Al2O3, Ga2O3, BaO, ZnO, Li2O, La2O3 and WO3; a third glass including a third component, the third component being at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S, in a third content; the third component and the first component are the same; The third content is greater than 0 mg / kg and not greater than 1500 mg / kg; 14. The set of glasses according to claim 12 or 13, wherein the third content is greater than the second content.

17. The set of glasses described in claim 12 or 13, wherein the first content is 0 mg / kg.

18. A set of glasses according to claim 12 or 13, which are standard samples for elemental analysis.

19. The set of glasses according to claim 18, which are standard samples for inductively coupled plasma (ICP) mass spectrometry, secondary ion mass spectrometry (SIMS), and / or X-ray fluorescence spectrometry (XRF).