Abstract
The introduction of Ag in SiAsTe glasses permits the incorporation of Se, otherwise volatile and/or degradable as a constituent in Si-containing chalcogenide glasses. SiAsAgTeSe glasses exhibit much higher softening ranges and glass transition temperatures than encountered in known chalgogenide systems. A glass Si35As15Ag10Te20Se20 had the viscosity log ν = 13 at about 500°C, as compared to 370°C for the base glass Si35As25Te40, the viscosity of log ν = 9.8 at about 560°C, as compared to 442°C for the base glass. Phase separation occurs in the system SiAsAgTeSe and becomes manifest in two glass transitions indicated by changes in the slopes of the expansion curves and breaks in the softening point-composition relations. The existence and behavior SiAsAgTeSe glasses suggests the possible development of higher Tg i.r. transparencies and higher Tg semiconductor glasses than described so far. © 1973.
Recommended Citation
H. E. Anthonis et al., "Polynary Silicon Arsenic Chalcogenide Glasses With High Softening Temperatures," Journal of Non-Crystalline Solids, vol. 13, no. 1, pp. 13 - 36, Elsevier, Jan 1973.
The definitive version is available at https://doi.org/10.1016/0022-3093(73)90033-1
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
0022-3093
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Elsevier, All rights reserved.
Publication Date
01 Jan 1973
