Preparation and Properties of Oxynitride Glasses Made from 27R2O · 20BaO · 3Al2O3 · 50P2O5 Glass
The preparation of oxynitride glasses, made by remelting 27R2O · 20BaO · 3Al2O3 · 50P2O5 glasses in anhydrous ammonia vapor, is described. Depending upon the melting temperature, processing time, and alkali ion size, glasses containing up to ≈ 6 wt% nitrogen were prepared. The oxynitride glasses had a lower dissolution rate in deionized water and thermal expansion coefficient, but a higher dilatometric softening temperature, refractive index, and Vickers microhardness. Models for nitrogen dissolution are discussed and used to calculate the glass composition from the measured weight loss and analyzed nitrogen content.
M. Rajaram and D. E. Day, "Preparation and Properties of Oxynitride Glasses Made from 27R2O · 20BaO · 3Al2O3 · 50P2O5 Glass," Journal of Non-Crystalline Solids, vol. 102, no. 1-3, pp. 173-180, Elsevier, Jun 1988.
The definitive version is available at http://dx.doi.org/10.1016/0022-3093(88)90130-5
Materials Science and Engineering
Keywords and Phrases
Glass Manufacture; Dilatometric Softening Temperature; Oxynitride Glasses; Thermal Expansion Coefficient; Vickers Microhardness
International Standard Serial Number (ISSN)
Article - Journal
© 1988 Elsevier, All rights reserved.