Spinel glass ceramic and preparation method thereof

A glass-ceramic and spinel technology, applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of long production time, high cost, low efficiency, etc., and achieve short production time and good heat resistance. , the effect of high efficiency

Inactive Publication Date: 2019-09-17
成都欣瑜兴光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, synthetic spinel is usually prepared by the pulling method, whi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A spinel glass-ceramic consisting of the following raw materials:

[0026] Basic composition, including the following components in molar percentages: ZnO 20%, Al 2 o 3 22%, SiO 2 43%, ZrO 2 3%, TiO 2 8% and MgO 4%;

[0027] Colorants, which are chromium-containing oxides (Cr 2 o 3 ), the molar percentage of chromium in the basic composition is 0.2%;

[0028] Tin-containing oxides as SnO and / or SnO 2 , the molar percentage of tin in the base composition is 0.1%.

[0029] The preparation method of above-mentioned spinel glass ceramics, comprises the following steps:

[0030] (1) Ingredients: weigh each raw material according to the formula, mix evenly, and obtain the ingredients;

[0031] (2) Melting: melt the batch material at 1600°C for 2 hours;

[0032] (3) Molding and annealing: the smelted molten glass is poured into a mold and then annealed at 620°C;

[0033] (4) Heat treatment: the annealed product is first heat-treated at 780° C. for 2 hours, and t...

Embodiment 2

[0036] A spinel glass-ceramic consisting of the following raw materials:

[0037] Basic composition, including the following components in molar percentages: ZnO 10%, Al 2 o 3 28%, SiO 2 45%, TiO 2 9% and MgO 8%;

[0038] Colorants, manganese-containing oxides (MnO 2 and / or Mn 2 o 3 ), the molar percentage of manganese accounting for basic components is 3%;

[0039] Flux, Na 2 O and K 2 O is a mixture of 1:1 by molar ratio, and the flux accounts for 1% by mole of the base component;

[0040] Tin-containing oxides as SnO and / or SnO 2 , the mole percentage of tin in the base composition is 1%.

[0041] The preparation method of above-mentioned spinel glass ceramics, comprises the following steps:

[0042] (1) Ingredients: weigh each raw material according to the formula, mix evenly, and obtain the ingredients;

[0043] (2) Melting: melting the batch material at 1620°C for 6 hours;

[0044] (3) Molding and annealing: pour the smelted molten glass into a mold, and ...

Embodiment 3

[0048] A spinel glass-ceramic consisting of the following raw materials:

[0049] Basic composition, including the following components in molar percentages: ZnO 16%, Al 2 o 3 16%, SiO 2 55%, TiO 2 9% and MgO 4%;

[0050] Colorants, which are nickel-containing oxides (NiO 2 and / or Ni 2 o 3 ), the molar percentage of nickel in the base composition is 0.2%;

[0051] Flux, Na 2 O and K 2 O is the mixture that is mixed at 1:2 by molar ratio, and the molar percentage that flux accounts for basic component is 2%;

[0052] Tin-containing oxides as SnO and / or SnO 2 , the molar percentage of tin in the base composition is 0.4%.

[0053] The preparation method of above-mentioned spinel glass ceramics, comprises the following steps:

[0054] (1) Ingredients: weigh each raw material according to the formula, mix evenly, and obtain the ingredients;

[0055] (2) Melting: melting the batch material at 1650°C for 4 hours;

[0056] (3) Molding and annealing: pour the smelted molt...

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PUM

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Abstract

The invention discloses a spinel glass ceramic and a preparation method thereof. The spinel glass ceramic comprises a basic component, a tin-containing oxide, a coloring agent and a fluxing agent, wherein the tin-containing oxide accounts for 0.1-2% of the mole percentage of the basic component; the coloring agent accounts for 0-3% of the mole percentage of the basic component; the fluxing agent accounts for 0-3% of the mole percentage of the basic component; and the basic component comprises the following components in percentage by mole: 43-60% of SiO2, 16-28% of Al2O3, 10-25% of ZnO, 5-12% of TiO2 and/or ZrO2 and 1-8% of MgO and/or a rare-earth oxide. The spinel glass ceramic disclosed by the invention is an artificial jewel material, is short in production time and high in efficiency, and the prepared spinel glass ceramic is good in thermal resistance, high in hardness, good in refractive index, capable of meeting requirements of jewel wax setting and applicable to industrial production.

Description

technical field [0001] The invention belongs to the technical field of glass-ceramics, and in particular relates to a spinel glass-ceramic and a preparation method thereof. The prepared spinel glass-ceramics is an artificial gemstone material. Background technique [0002] Spinel is one of the more precious gemstones. Natural spinel has a variety of colors, such as red, orange, pink, green, blue, black, etc., and has high hardness and good processing performance. It is a rare decorative gemstone and is deeply loved by the masses. However, because of its small output and high price, the preparation of spinel-like decorative gem materials by artificial synthesis will have a great market prospect. [0003] However, synthetic spinel is usually prepared by the pulling method, which has the disadvantages of long production time, high cost and low efficiency. Contents of the invention [0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention pr...

Claims

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Application Information

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IPC IPC(8): C03C10/02C03B5/16C03B25/00C03B32/02
CPCC03B5/16C03B25/00C03B32/02C03C10/0036
Inventor 黄俊力
Owner 成都欣瑜兴光电科技有限公司
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