Crystallization of Fluoride Glasses Based on AlF3 and ZrF4

Abstract

Abstract: The phase separation and crystallization of fluoride glass 8.7MgF₂-17.4CaF₂-8.7SrF₂-13.3BaF₂-13.0YF₃-31.6AlF₃-7.3ZrF₄ in mole percent were studied. The investigation indicates that the phase
separation occurs obviously when AlF3 and ZrF₄ coexist in glass, the glass is more sensitive to water at high temperature and the surface
crystallization often occurs. The crystallization in glass mainly occurs in Al-rich phase, and the crystallization on the surface of glass mostly
comes from Zr-rich phase because of the water in atmosphere. According to the performance of glass phase separation and crystallization, the surface
crystallization mechanism of fluoride glass containing AlF3 and ZrF₄ was discussed.

Key words: fluoride glass, phase separation, crystallization, surface crystallization

CLC Number:

TQ171

CAO Guo-Xi,HU He-Fang,GAN Fu-Xi. Crystallization of Fluoride Glasses Based on AlF₃ and ZrF₄[J]. Journal of Inorganic Materials.

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Crystallization of Fluoride Glasses Based on AlF₃ and ZrF₄

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