Anti-radiation lithium-aluminum-silicate system low-expansion window glass and machining process thereof
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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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But in the prior art, because this kind of glass does not have the performance of resisting various particles and ray
Method used
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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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