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On Topological Transitions and Chemical Ordering in ‎Network Glasses of the Ge-Ga-S System

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Thu, 2014-02-20 09:32 — Ghassan Saffarini
Journal Title, Volume, Page: 
Solid State Communications Volume 91, Issue 7, Pages 577–580
Year of Publication: 
1994
Link: 
http://www.sciencedirect.com/science/article/pii/0038109894903786
Authors: 
G. Saffarini
Physics Department, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Physics, Faculty of Science, An-Najah National University, Palestine
[email protected]
Preferred Abstract (Original): 

Chalcogenide glasses of the Ge-Ga-S system were prepared using high purity (5 N) Ge, Ga and S. Molar volume, V, and glass transition temperature, Tg, were obtained from the measured densities and the differential scanning calorimetry (DSC) thermograms. The property-composition dependence is examined in the light of the chemically ordered covalent network (COCN) model and the topological models which are proposed for the atomic arrangement in these covalently bonded glasses.