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Physical Properties of Chalcogenide and Chalcohalide Glasses
Author(s) -
Nguyen Vinh Q.,
Sanghera Jas S.,
Aggarwal Ishwar D.,
Lloyd Isabel K.
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01285.x
Subject(s) - chalcogenide , glass transition , materials science , delocalized electron , chalcogenide glass , thermal expansion , mineralogy , analytical chemistry (journal) , crystallography , chemistry , metallurgy , polymer , composite material , organic chemistry , chromatography
The physical properties of glasses in the Ge 30 As 10 Se (60— x ) Te x system with x = 25, 28, 30, and 35 at.% Te, the Ge 30 As 10 Se 30 Te (30— y ) I y system with y = 5, 10, 20, and 30 at.% I, the Ge 30 As 10 Se 35 Te (25— z ) I z system with z = 2, 6, 10, and 20 at.% I, and the [Ge 30 As 10 Se 30 Te 30 ] (100— w ) I w system with w = 0, 5, 10, and 20 at.% I have been investigated. The changes in the glass transition temperature, density, coefficient of thermal expansion, hardness, and viscosity are attributed to the delocalized metallic bonding character of Te in the substitution of Te for Se in the Ge‐As‐Se‐Te glass system and the network‐terminating role of iodine in the substitution of I for Te in the Ge‐As‐Se‐Te‐I glass system, respectively.