| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10636999 | Solid State Sciences | 2005 | 7 Pages |
Abstract
New chalcohalide glasses in the GeS2Ga2S3MCl2 (M = Ba, Cd) systems have been prepared. Physical properties have been characterized in terms of glass transition temperature, Tg (Tg=295-430â°C), thermal stability ÎT (ÎT=50-180â°C), thermal expansion coefficient, microhardness Hv and density d. Optical properties such as indices of refraction and optical bandgap are studied as a function of halide content. The GeGa-based chalcohalide glasses show optical bandgap extended towards shorter wavelengths. The evolution of glass structure due to MCl2 addition has been studied by Raman spectroscopy in the range 175-550 cmâ1. Structural variations are related to those of physical properties.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jenny Le Person, Virginie Nazabal, Jean-Luc Adam,