318 results about "Silicate glass" patented technology

The invention belongs to the technical field of glass manufacturing, and particularly relates to anti-falling and anti-scratching lithium aluminum silicate glass and a preparation method thereof.The anti-falling and anti-scratching lithium aluminum silicate glass is prepared from, by mass, 250.0%-65.0% of SiO2, 10.0%-20.0% of Al2O3, 2.0%-8.0% of Na2O, 1.0%-5.0% of K2O, 1.0%-5.0% of MgO, 1.0%-5.0% of ZrO2, 2.0%-8.0% of Li2O, 0.1%-2.0% of CaO, 1.0%-5.0% of Y2O3, 0.1%-5.0% of BaO and 0.05%-0.5% of additives; the additive is one or more of Fe2O3, Co2O3, CuO and Cr2O3; the mass ratio of BaO to Y2O3 is 1: (2-4). The problems of long founding time, low ion exchange process efficiency, low hardness, low bending strength and poor high-temperature stability of the existing lithium aluminosilicate glass preparation process are solved.

The application discloses a kind of ship super-long anticorrosion special nano powder coating, preparation method and application, belong to ship heavy anticorrosion material technical field.The preparation method of the ship super-long anticorrosion special nano powder coating is as follows: epoxy resin, graphene modified epoxy resin, core-shell structure ZnO@SiO2, modified 2,5-dimercapto-1,3,4-thiadiazole, borosilicate glass powder, flaky boron nitride, silane coupling agent modified silica, phenolic amine curing agent, 2-ethyl-4-methylimidazole, fumed silica, defoaming agent, ultraviolet absorber, high-temperature pigment are put into stirrer and stirred for 20-30min, then melt extrusion is carried out through double screw extruder, the extrusion temperature is 90-110 DEG C, grinds and sieves, and the ship super-long anticorrosion special nano powder coating is obtained.The coating prepared by the application has good anticorrosion performance and can be applied in the field of ship metal surface corrosion protection.

An embodiment of the present disclosure relates to the field of photovoltaics, and provides a solar cell and a manufacturing method thereof. The manufacturing method includes the steps of: providing a substrate having a first surface and a second surface facing each other; performing a doping process on at least the first surface to form a doped layer having a first doping element; performing a first laser process on a portion of the doped layer to form an activated portion and leaving the remaining doped layer as a doped portion; performing a first etching process on the first surface, using the remaining doped layer as a dead layer, to remove the activated portion and form a first textured surface; forming a doped polysilicon layer and a silicate glass layer having a second doping element at least on a side of the substrate away from the doped portion; performing a second laser process on at least a portion of the silicate glass layer to form a sparse portion; and performing a second etching process on at least the second surface, using the remaining silicate glass layer as a protective layer, to remove the sparse portion and the doped polysilicon layer facing the sparse portion and form a second textured surface. The first laser process and the second laser process use different laser types, thereby simplifying at least the manufacturing process.

A method of making a glass article using a phase separated silicate glass comprising a silica-rich first phase and a boron-rich second phase. The phase separation silica glass is etched with an etchant to remove at least a portion of the second phase and obtain a high silica content porous glass article. Through holes may be formed in a porous glass article by first forming holes in the porous glass article and filling the holes with a conductive material. The porous glass article may be heat treated to consolidate the porous glass article, thereby closing pores of the porous glass article and obtaining a consolidated glass article having very low dielectric properties. Various glass compositions that are phase-separated via rotary knotting are disclosed.

The invention discloses a fluid inclusion standard sample for in-situ isotope analysis as well as preparation and application of the fluid inclusion standard sample. The preparation method comprises the following steps: obtaining silicate glass powder with uniform components, carrying out high-temperature and high-pressure reaction on the glass powder and a fluid salt solution with the same mass in a closed Cu-Au tube, taking out a reaction product after the reaction, and drying to obtain the fluid inclusion standard sample for isotope analysis. According to the method, the silicate glass with uniform components can rapidly capture the fluid inclusion, and the Cu isotope in the fluid inclusion is accurately measured and controlled according to the fractionation degree of the Cu isotope between the acid salt melt and the fluid.

The invention relates to the technical field of glass, in particular to an alkali-free aluminoborosilicate glass composite clarifying agent and a clarifying method thereof. The alkali-free aluminoborosilicate glass composite clarifying agent is prepared from the following raw materials in percentage by mass on the basis of the total mass of alkali-free aluminoborosilicate glass: 0.4 to 5.5 percent of halogen alkaline earth metal salt, 0.03 to 0.4 percent of lanthanum oxide, 0.01 to 0.4 percent of tin dioxide and 0.01 to 0.3 percent of cerium dioxide. The alkali-free aluminoborosilicate glass composite clarifying agent is applied to alkali-free aluminoborosilicate glass, and the problems that the alkali-free aluminoborosilicate glass is poor in clarifying effect and has many bubble defects are solved; the corrosion of high-temperature molten glass to refractory materials at parts such as a tank furnace and the like is reduced, so that the number of stone defects of the refractory materials in the glass is reduced, and the service life of the refractory materials of the furnace is prolonged.

A method of manufacture for creating an NDE test specimen with predictably located one or more flaws according to a digital flaw map and of a material having an angle of refraction matching industrial workpieces for testing and training is disclosed. Comprising selecting a workpiece material for the NDE test specimen having a substantially similar angle of refraction to industrial workpieces, fabricating the NDE test specimen from the workpiece material, executing a CAD software on one or more processors of a controller computer, reading the digital flaw map comprising coordinates of the one or more flaws to be applied to the NDE test specimen, controlling a high energy beam CNC to apply the digital flaw map to the NDE test specimen, selecting the workpiece material among crystal, borosilicate glass, and acrylic, applying a laser beam at a plurality of energy points within the NDE test specimen.

The invention belongs to the technical field of sealants, and particularly relates to a heat-conducting flame-retardant sealant for a power battery and a preparation method thereof.The heat-conducting flame-retardant sealant for the power battery is prepared through collaborative design of a composite heat-conducting filler and a polyglutamic acid-melamine cyanurate-calcium hydrophosphate composite flame retardant and combination of magnetic field dispersion, ultrasonic blending and silane coupling agent interface optimization technologies; the heat-conducting and flame-retardant properties of the material are obviously improved. A lithium silicate glass ceramic precursor is subjected to surface modification through phosphorus oxychloride, the combination of a reinforcing filler and a matrix is enhanced, a flexible cross-linked network is constructed by amino-terminated polyether and an isocyanate curing agent, and the mechanical strength and thermal stability are guaranteed. The sealant inhibits combustion propagation and reduces toxic gas release through a multi-stage reaction mechanism during thermal runaway, meanwhile, the sealant adapts to high-frequency vibration and thermal cycle working conditions of a battery module, and the preparation process realizes synergistic enhancement of heat conduction and flame retardance through gradient stirring, vacuum defoaming and filler uniform dispersion technologies.

A method of bleaching a glass-ceramic article is disclosed. The method includes illuminating a first portion of the body by directing a light beam from a laser to a thickness of the glass-ceramic article body to heat the first portion and form a first aperture therein. The body is configured to have an amorphous silicate glass phase, a crystalline phase, and a body transmittance. The first aperture is configured to have a first transmittance greater than the body transmittance at a first wavelength of about 350 nm to about 2500 nm. The light beam from the laser is configured to include a bleaching wavelength selected from a laser band within which residual absorption is continuously present in the aperture after illumination at the bleaching wavelength.

The invention discloses fluorescent glass ceramic, a preparation method thereof and a luminescent device, and belongs to the technical field of luminescent materials. The fluorescent glass ceramic comprises glass powder and fluorescent powder, the glass powder comprises zinc borosilicate glass powder; the zinc borosilicate glass powder comprises the following components in percentage by mole: 5%-20% of SiO2, 10%-35% of B2O3, 20%-65% of ZnO, 0.3%-15% of P2O5, 2%-20% of RO and 0.1%-15% of R2O, RO is selected from at least one of MgO, CaO, SrO and BaO, and R2O is selected from at least one of Li2O, Na2O and K2O; the fluorescent powder comprises blue-green fluorescent powder; the emission peak wavelength of the blue-green fluorescent powder is 480-510 nm; based on the total mass of the glass powder and the fluorescent powder, the mass percentage content of the glass powder is 30-80%, and the mass percentage content of the fluorescent powder is 20-70%. The fluorescent glass ceramic is high in reliability and can be applied to high-power light emitting, a light emitting device formed by combining the fluorescent glass ceramic and a proper light source can provide an accurate azure light emitting effect, and the requirements in application scenes with harsh color requirements are met.

The invention discloses sand grains with a water storage structure and a preparation method and application thereof. The method comprises the steps that S1, sand grains with the grain size ranging from 0.1 mm to 1 mm are selected, the grain size distribution meets the condition that D50 is equal to 0.3 mm, clay impurities are screened out, and the sand grains are placed on a sand grain base plate (1) after being cleaned and dried; s2, nano silicate powder is uniformly sprayed on the surfaces of the sand grains through an electrostatic spraying technology, so that a silicate glass layer (5) is formed on the surfaces of the sand grains; s3, a microarray lens (3) is used for dividing a laser source into multiple laser beams, each laser beam irradiates the silicate glass layer (5) on each sand grain in a one-to-one mode, silicate powder and the surface layers of the sand grains are co-melted, and then an amorphous net-shaped structure is formed; s4, argon is used for spraying the amorphous net-shaped structure so that the amorphous net-shaped structure can be rapidly cooled, and then a porous heterojunction structure is formed on the surface of the sand grains; and S5, scanning the silicate glass layer (5) by using the laser again, so that the part of the silicate glass layer (5) is molten again, silicate is decomposed to generate gas, and cooling and curing are performed after bubbles are formed in the molten glass. According to the invention, the sand grains have a certain water storage characteristic.

A method of making a glass article using a phase separated silicate glass including a silica rich first phase and a boron rich second phase. The phase separated silica glass is etched with an etchant to remove at least a portion of the second phase and obtain a high silica content porous glass article. Vias may be formed in the porous glass article by first forming holes in the porous glass article and filling the holes with an electrically conductive material. The porous glass article may be heat treated to consolidate the porous glass article to close the pores of the porous glass article and obtain a consolidated glass article with very low dielectric properties. Various glass compositions are disclosed that phase separate via spinodal decomposition.

Aluminoborosilicate glass compositions, products including the same, methods of making the same, and methods of using the same are provided. Such glass compositions include an alkaline earth metal oxide. The glass composition includes low concentrations of boron oxide and strontium oxide. Such glass compositions may be substantially alkali free. The glass compositions exhibit desirable physical and chemical properties, such as high annealing point, high modulus of elasticity, low stress optical coefficient (SOC), low T (35kP) and T (200P), and desirable liquid phase viscosity. The glass composition is suitable for use as a substrate in a flat panel display device having ultra-high resolution, such as an active matrix liquid crystal display (AMLCD).

A polishing liquid for polishing undoped silicate glass, the polishing liquid having a pH of 3.0 or more. A polishing method including a step of polishing a surface to be polished of a member to be polished containing undoped silicate glass by using the above-described polishing liquid. A method for manufacturing a component, including obtaining a component by using a polished member polished by the above-described polishing method.

The invention relates to an environment-friendly water-based composite flame retardant and a preparation method thereof, and belongs to the technical field of flame retardant preparation. A formula of the environment-friendly water-based composite flame retardant comprises the following components in percentage by weight: 1.5-3.0% of modified graphene, 8-12% of nano magnesium hydroxide, 5-8% of nano sodium silicate, 0.5-1.0% of a surfactant and the balance of deionized water. Modified graphene, nano magnesium hydroxide and sodium silicate generate a synergistic flame-retardant effect, the modified graphene builds a compact carbon layer framework, magnesium hydroxide reflects heat radiation through endothermic decomposition and magnesium oxide barrier, sodium silicate promotes formation of a silicate glassy carbon layer, and the oxygen index of the material is remarkably increased through compounding of the three. The flame retardant prepared by the invention has excellent thermal conductivity and environment-friendly characteristic, and can be widely applied to the fields of fire extinguishing and flame retardance.

Aluminosilicate or aluminoborosilicate glass compositions and products comprising the same are provided. Such glass compositions are substantially alkali-free and include alkaline earth metal oxides. The glass composition may include a low concentration of boron oxide. The glass compositions exhibit desirable physical and chemical properties, such as improved annealing point (e.g., above 775 DEG C), improved elastic modulus, reduced stress optical coefficient (SOC), and desirable liquidus viscosity. The glass composition is suitable for use as a substrate in a flat panel display device having ultra-high resolution, such as an active matrix liquid crystal display (AMLCD).

The invention discloses a low-dielectric low-loss high-strength borosilicate glass ceramic composite material and a preparation method thereof, and belongs to the technical field of borosilicate glass ceramic composites.The low-dielectric low-loss high-strength borosilicate glass ceramic composite material is prepared from, by weight, 70% of low-alkali borosilicate glass ceramics with the low borosilicate ratio, 29% of Al2O3 and 1% of Bi2O3. The preparation method comprises the following steps: preparing low-alkali borosilicate glass ceramics with a high borosilicate ratio, melting the low-alkali borosilicate glass ceramics with the high borosilicate ratio and amorphous SiO2 at a set temperature to obtain the required low-alkali borosilicate glass ceramics with the low borosilicate ratio, and finally mixing and ball-milling the crushed and ground low-alkali borosilicate glass ceramics with Al2O3 and Bi2O3 to obtain the low-alkali borosilicate glass ceramics with the low borosilicate ratio. And finally, the borosilicate glass ceramic composite material is sintered at the temperature of 880-900 DEG C. The borosilicate microcrystalline glass ceramic composite material is low in dielectric, low in loss and high in strength.

The invention discloses a composite decolorizing agent for high-iron aluminosilicate glass and an application method thereof.The composite decolorizing agent comprises a glass mixture of the high-iron aluminosilicate glass and the composite decolorizing agent added into the glass mixture, the composite decolorizing agent is composed of CeO2, Co2O3 and Nd2O3, the content of CeO2 accounts for 0.05%-0.15% of the glass mixture, the content of Co2O3 accounts for 1.5 ppm-2. 5ppm of the glass mixture, the content of Nd2O3 accounts for 1.5 ppm-2. 5ppm of the glass mixture, and the content of Nd2O3 accounts for 1.5 ppm-2. 5ppm of the glass mixture. The content of the Nd2O3 is 0.01%-0.02% of the content of the glass mixture. According to the present invention, the low-cost common white sand is adopted to introduce the SiO2, and the CeO2, the Co2O3 and the Nd2O3 are added to remove the bad color in the neutralized glass, such that the whiteness of the glass can be effectively improved, the control on the color of the alumina silicate glass can be achieved under the high iron content, the stable decolorization effect is provided, and the production cost is reduced.

The invention relates to a preparation method of a glass optical fiber with low loss, high numerical aperture and high core-to-package ratio, which comprises the following steps: during composition design of a borosilicate fiber core and cladding glass, firstly, keeping the content ratio of alkali metal oxide, alkaline earth metal oxide and intermediate oxide basically constant; then, adjusting the relative content proportion of different oxides in the same kind of oxides, and meanwhile, utilizing the characteristic that the refractive index and the thermal expansion coefficient of borosilicate glass show that the refractive index change is obvious and the thermal expansion coefficient change is small along with the change of the content of boron oxide; the relative ratio of the content of silicon dioxide to the content of boron oxide is adjusted, and the numerical aperture and the thermal expansion coefficient difference value between the fiber core and the cladding glass are regulated in a bidirectional mode. Through subsequent fiber forming operation, preparation of the low-loss high-numerical-aperture high-core-to-package-ratio glass optical fiber with the numerical aperture reaching 0.46 or above and the core-to-package-ratio reaching 0.91 or above is achieved, and possibility is provided for preparation and application of the low-loss thin-cladding all-glass optical fiber.

The present invention relates to a silicate glass comprising from 35 to 45 wt% of silicon dioxide (SiO2), at most 15 wt% of molybdenum trioxide (MoO3), from 4 to 7 wt% of zirconium dioxide (ZrO2), from 1 to 3.5 wt% of phosphorus pentoxide (P2O5), and from 14 to 28 wt% of one or more alkali metal oxides and / or one or more alkaline-earth metal oxides, the weight percentages being expressed relative to the total weight of the glass. The present invention also relates to a method for improving the solubility of molybdenum in a glass melt.

The invention relates to aluminosilicate glasses and methods of making the same. The present invention relates to an aluminosilicate glass containing 30% or more of SiO2, 10% or more of Al2O3, 2% or more of Li2O, 100 ppm by mass or more of SO3, and 100 ppm by mass or more of Cl, and having a content ratio represented by Cl / (Cl + SO3) of 0.120 or more, as expressed in mass% on the basis of oxides.

The invention relates to a lithium aluminosilicate glass ceramic having a coefficient of thermal expansion in the range of 20 DEG C to 700 DEG C of-0.5 to 1.9 ppm / K and to the use thereof. The glass ceramic contains the following components in percentage by weight on the basis of oxides: 60 to 70 percent of SiO2, 17 to 25 percent of Al2O3, 1.5 to 1t of Li2O, 0.5 to 1.5 percent of Na2O, 0.5 to 1.5 percent of Na2O, 0.5 to 1.5 percent of Na2O and 0.5 to 1.5 percent of Na2O. 3.0% of MgO, 0-1.4% of K2Ogt, 0-1.4% of 1 to 3 parts of SnO2 and 0.1 to 1t of SnO2; 1.

Method for producing a shatter-resistant membrane glass (2) of a glass component of a measuring half-cell (1) of an analyte-sensitive sensor, comprising: - providing at least one membrane glass (2) of a sensor blown onto a shaft (3), which consists of a sodium- and lithium-containing glass, preferably sodium- and lithium silicate glass, or of a lithium-containing glass, preferably lithium silicate glass, or comprises one of these materials; - bringing the at least one membrane glass (2) blown onto a shaft (3) into contact with a pickling solution containing sodium ions, preferably a sodium acetate or sodium nitrate solution or a melt containing sodium ions; - heating the membrane glass (2) at a temperature of 200°C-500°C, preferably 300-450°C, more preferably 400-450°C for 10-20 minutes, wherein the membrane glass (2) is ion-sensitive.

This application belongs to the field of ceramic tile technology and specifically discloses a candy dry granule glaze, a candy-effect ceramic tile, and a preparation method. The candy dry granule glaze comprises candy dry granules, and its raw materials, by weight, include: 11-15 parts kaolin, 21-31 parts soda-lime silicate glass powder, 7-13 parts nano-silicon dioxide, 12-18 parts alpha-alumina, 2-5 parts calcium fluoride, 5-13 parts nano-zinc oxide, 2-6 parts borax, 3-5 parts sodium carbonate, 4-6 parts potassium carbonate, 1-3 parts lithium carbonate, and 8-10 parts calcium carbonate; a glaze layer formed on the surface of the ceramic tile by the candy dry granule glaze is obtained to obtain a ceramic tile with a candy effect. The candy dry granule glaze provided in this application takes into account both good transparency and good physical properties, with a more three-dimensional and natural texture and high wear and stain resistance.

The invention provides lithium disilicate glass ceramic containing zinc spinel as a sub-crystalline phase and a preparation method and a product of the lithium disilicate glass ceramic, and belongs to the technical field of lithium disilicate glass ceramic. The lithium disilicate glass ceramic is prepared by simultaneously introducing ZnO and Al2O3 components necessary for forming a zinc spinel secondary crystal phase into a basic glass component in a glass melting stage, melting in an air atmosphere and adopting a casting method or a sintering method, and zinc spinel is separated out from a main crystal phase lithium silicate glass ceramic in the obtained product to serve as the secondary crystal phase. The zinc spinel sub-crystalline phase separated out from the lithium disilicate glass ceramic can improve the strength, the fracture toughness and the acid and alkali corrosion resistance of the lithium disilicate glass ceramic, so that the restoration is not easy to generate the phenomena of ceramic cracking and the like in the processing, polishing and using processes, the product stability is improved, and the use space of the product is widened.

The invention relates to a lithium aluminosilicate glass ceramic having a coefficient of thermal expansion in the range of 20 DEG C to 700 DEG C of-0.5 to 1.9 ppm / K and to the use thereof. The glass ceramic contains the following components in percentage by weight on the basis of oxides: 60-70% of SiO2, 17-25% of Al2O3, 2.0-lt of Li2O, 0.1-0.5% of MgO, 0.1-0.5% of MgO, 0.1-0.5% of Na2O, 0.1-0.5% of Na2O, 0.1-0.5 3.0, MgOgt is selected; 1.5 to 4.0 parts of ZnO (zinc oxide) gt; and 3.0 to 6.0 parts by weight.

The invention discloses sealing glass powder with low dielectric constant and dielectric loss and a preparation method thereof, and belongs to the field of preparation of borosilicate glass and special glass. The sealing glass powder comprises the following components in percentage by mass: 80-100% of borosilicate glass powder and 0-20% of silicon dioxide powder; the borosilicate glass powder is prepared from the following components in percentage by mass: 56 percent to 65 percent of SiO2, 26 percent to 40 percent of B2O3, 0 percent to 2 percent of Al2O3, 0 percent to 2 percent of ZnO, 2 percent to 3 percent of Li2O, 0 percent to 1.5 percent of Na2O, 0 percent to 1.5 percent of K2O, 0.5 percent to 1 percent of Cr2O3, 0 percent to 0.5 percent of BaO and 0 percent to 0.5 percent of CaF2. The dielectric constant and dielectric loss of the material are reduced, and the dielectric property of the sealing glass powder is improved. The sealing glass powder is low in sealing temperature, simple in preparation method, low in production energy consumption, easy to control and suitable for electronic packaging and sealing of electric connectors.

A method of measuring temperature includes positioning an optical fiber in contact with an object or in an environment having a temperature to be determined, where the optical fiber comprises a core surrounded by a cladding; the core comprises an alkaline-earth fluorosilicate glass including defects, and the cladding comprises a silica glass. Infrared light is supplied to the optical fiber, thereby electronically exciting the defects. Green light emitted from the defects is detected, and an intensity value of the green light is obtained and converted to a temperature value for the optical fiber, whereby the temperature of the object or environment is determined. The green light may be detected along a length of the optical fiber, and a plurality of intensity values may be converted to a plurality of temperature values along the fiber length, thereby obtaining a distributed measurement of the temperature of the object or environment.

The invention relates to a preparation technology of a solar cell selective emitter, and relates to the field of solar cell preparation. The method mainly comprises the following steps of: slotting on a silicon substrate with a prepared borosilicate glass layer by using laser, removing the borosilicate glass layer in a slotting area, printing boron slurry in the slotting area, oxidizing to form a heavy expansion area in a boron slurry printing area, and forming a light expansion area in a non-laser slotting area. The preparation process can effectively improve the surface concentration of the re-diffusion region, reduce metal contact and improve the cell efficiency.

The invention belongs to the technical field of ceramic tiles, and particularly discloses a candy dry granular glaze, a candy effect ceramic tile and a preparation method. The candy dry granular glaze comprises candy dry granules and is prepared from the following raw materials in parts by weight: 11-15 parts of kaolin, 21-31 parts of soda-lime silicate glass powder, 7-13 parts of nano silicon dioxide, 12-18 parts of alpha-aluminum oxide, 2-5 parts of calcium fluoride, 5-13 parts of nano zinc oxide, 2-6 parts of borax, 3-5 parts of sodium carbonate, 4-6 parts of potassium carbonate, 1-3 parts of lithium carbonate and 8-10 parts of calcium carbonate. A ceramic tile with a candy effect is obtained through a glaze layer formed on the surface of the ceramic tile through the candy dry granular glaze. The candy dry granular glaze provided by the invention has better transparency and better physical properties, the texture is more three-dimensional and natural, and the candy dry granular glaze has higher wear-resistant and antifouling properties.