Borosiliphosphate glass with high ultraviolet light transmissivity and preparation method thereof

Abstract

The invention relates to borosiliphosphate glass with high ultraviolet light transmissivity and a preparation method thereof. The glass comprises the following components: SiO2, B2O3, P2O5, ZnO and SrO. The preparation method comprises the following steps: carrying out ball-milling on raw materials corresponding to the oxide components, screening with a 80-mesh sieve, and evenly mixing so as to prepare a mixture; and placing the mixture in a crucible for melting, pouring the melting glass liquid into a stainless steel mould for molding, and annealing so as to obtain the colorless, transparent, uniform and bubble-free blocky glass. The glass prepared by the method is superior to the existing ultraviolet-transmitting glass material in the aspects of comprehensive properties such as thermal expansion coefficient, density, ultraviolet light transmissivity, corrosion rate in water medium, bending strength and the like. According to the invention, the method is simple and environmentally-friendly, heavy metal ions are not introduced, the purity requirement of raw materials is low, melting temperature is low, and production cost is low; and the prepared ultraviolet-transmitting glass material is good in property and has a wide market application prospect.

Description

technical field [0001] The invention relates to a borosilicate phosphate glass with high ultraviolet light transmittance and a preparation method thereof, in particular to a borosilicate phosphate glass material with low thermal expansion coefficient, high chemical stability and high ultraviolet light transmittance and a preparation method thereof. The invention belongs to the technical field of new glass materials and their preparation. Background technique [0002] Ultraviolet light-transmitting materials are widely used in microlithography equipment, semiconductor microscopy equipment, laser systems, and special optical instruments such as ultraviolet light detectors. [0003] There have been many studies on UV-transmitting glass at home and abroad, especially abroad, and there are also many application examples. [0004] Glass former oxide P 2 o 5 , SiO 2 , B 2 o 3 、GeO 2 It has good ultraviolet light transmission performance, among which, P 2 o 5 and SiO 2 Gla...

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Problems solved by technology

[0010] 2) The glass is easy to deliquescence and has poor chemical stability. After the formation of the light window component, the alloy is deoxidized (cleaned directly with acid solution) and the electropolishing process, the glass is severely corroded;

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