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Anti-radiation lithium-aluminum-silicate system low-expansion window glass and machining process thereof

A window glass and processing technology, applied in the field of radiation-resistant lithium-aluminum-silicon-based low-expansion window glass and its processing technology, can solve the problems of not having resistance to various particles, rays, restrictions, etc., and achieve good thermal shock resistance. , the effect of small expansion coefficient

Active Publication Date: 2016-09-21
QINHUANGDAO XINGJIAN SPECIAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in the prior art, because this kind of glass does not have the performance of resisting various particles and rays in space, the application of this kind of low-expansion window glass-ceramics in the field of aerospace is limited.

Method used

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  • Anti-radiation lithium-aluminum-silicate system low-expansion window glass and machining process thereof
  • Anti-radiation lithium-aluminum-silicate system low-expansion window glass and machining process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Anti-radiation lithium-aluminum-silicon low-expansion window glass, the glass includes the following components, by mass percentage, Li 2 O 2.5%, Al 2 o 3 16.2%, SiO 2 71.8%, TiO 2 0.8%, ZrO 2 0.6%, P 2 o 5 1.3%, F - 0.7%, CeO 2 0.7%, B 2 o 3 1.8%, Na 2 O 0.5%, K 2 O 0.4%, MgO 0.6%, CaO 0.2%, ZnO 1.9%.

Embodiment 2

[0044] Anti-radiation lithium-aluminum-silicon low-expansion window glass, the glass includes the following components, by mass percentage, Li 2 O 8.5%, Al 2 o 3 26%, SiO 2 40%, TiO 2 4.6%, ZrO 2 0.6%, P 2 o 5 3.0%, F - 3.1%, CeO 2 3.9%, B 2 o 3 5.2%, Na 2 O 0.7%, K 2 O 0.6%, MgO 0.7%, CaO 0.4%, SrO 0.2%, BaO 0.3%, ZnO 2%, Cl - 0.1%, SO 4 2- 0.1%.

Embodiment 3

[0046] Anti-radiation lithium-aluminum-silicon low-expansion window glass, the glass includes the following components, by mass percentage, Li 2 O 3%, Al 2 o 3 17.6%, SiO 2 41%, TiO 2 1.9%, ZrO 2 1.7%, P 2 o 5 1.5%, F - 1.5%, CeO 2 1.3%, B 2 o 3 6.9%, Na 2 O 3.5%, K 2 O 3.0%, MgO 4.5%, CaO 1.2%, SrO 3.7%, BaO 3.0%, ZnO 2.2%, Cl - 1.2%, SO 4 2- 1.3%.

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Abstract

The invention discloses anti-radiation lithium-aluminum-silicate system low-expansion window glass and belongs to lithium-aluminum-silicate system glass ceramics. The glass is prepared from, by mass, 2.5-8.5% of Li2O, 16.2-26% of Al2O3, 40-71.8% of SiO2, 0.8-4.6% of TiO2, 0.6-3.7% of ZrO2, 1.3-7% of P2O5, 0.7-3.1% of F-, 0.7-3.9% of CeO2, 1.8-6.9% of B2O3, 0.5-3.5% of Na2O, 0.4-3% of K2O, 0.6-4.5% of MgO, 0.2-5.2% of CaO, 0-3.7% of SrO, 0-3% of BaO, 1.9-8.2% of ZnO, 0-1.2% of Cl- and 0-1.3% of SO42+. The invention further provides a machining process of the anti-radiation lithium-aluminum-silicate system low-expansion window glass. The window glass has high transmission, high strength, good in cold-heat impact resistance, small expansion coefficients and anti-radiation stability, can be widely applied in the aerospace field such as a transparent observation window of a spacecraft.

Description

technical field [0001] The invention belongs to the technical field of lithium-aluminum-silicon-based glass-ceramics, and relates to low-expansion lithium-aluminum-silicon-based glass-ceramics, in particular to radiation-resistant lithium-aluminum-silicon-based low-expansion window glass, and the radiation-resistant lithium-aluminum-silicon-based low-expansion window of the present invention The main crystal phase of the glass is β-spodumene solid solution, which has radiation resistance, high transparency, high light transmittance, and strong impact resistance. The low-expansion window glass-ceramic of the present invention can be widely used in aerospace fields, such as aerospace The transparent observation window and other parts of the device. Background technique [0002] Glass-ceramics is a hard, dense and uniform composite material composed of crystalline phase and glass phase, which is made of glass particles with appropriate composition after sintering and crystalliz...

Claims

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Application Information

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IPC IPC(8): C03C10/12C03B32/02C03C1/00C03C6/06C03C4/00
CPCC03B32/02C03C1/00C03C4/00C03C4/0092C03C10/0027
Inventor 卢勇
Owner QINHUANGDAO XINGJIAN SPECIAL GLASS
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