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Published in: Journal of Materials Science 2/2009

01-01-2009

Formation and properties of nitrogen-rich strontium silicon oxynitride glasses

Authors: Ali Sharafat, Bertil Forslund, Jekabs Grins, Saeid Esmaeilzadeh

Published in: Journal of Materials Science | Issue 2/2009

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Abstract

Glass formation in the system Sr–Si–O–N was investigated and properties of obtained glasses evaluated. The glass-forming region was determined for glasses prepared by melting mixtures of Sr metal, SiO2 and Si3N4 powders in Nb crucibles at 1600–1750 °C in nitrogen atmosphere using a radio frequency furnace. The glasses were found to be homogenous, translucent gray to opaque black, and to contain high contents of N (up to 45 e/o) and Sr (up to 36 e/o). The glass transition temperature (790–973 °C), density (2.99–4.07 g/cm3), microhardness (8.10–10.50 GPa), and refractive index (1.65–1.93) are strongly correlated with the amounts of Sr and N. The properties are compared with findings in other oxynitride silicate glass systems.

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Metadata
Title
Formation and properties of nitrogen-rich strontium silicon oxynitride glasses
Authors
Ali Sharafat
Bertil Forslund
Jekabs Grins
Saeid Esmaeilzadeh
Publication date
01-01-2009
Publisher
Springer US
Published in
Journal of Materials Science / Issue 2/2009
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-008-3058-3

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