journal article·2013-07

Effect of antimony addition on thermal stability and crystallization kinetics of germanium–selenium alloys

Neha Sharma, Sunanda Sharda, Vineet Sharma, Pankaj Sharma

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Abstract

Abstract Chalcogenide glasses are promising materials for threshold and memory switching. Alloys of Ge19Se81 − xSbx (x = 0, 4, 8, 12, 16, 17.2, 20) have been prepared by melt quench technique. Differential thermal analysis has been used to characterize samples at different heating rates (α = 5, 10, 15, 20 K/min). Glass transition temperatures, crystallization temperature, melting temperature, activation energy for glass transition and crystallization have been determined. Thermal stability of alloys has been analyzed in terms of ease by which atomic rearrangements take place and the resistance to devitrification. The correlation between thermal stability and glass forming ability has also been studied.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Phase-change materials and chalcogenides · Glass properties and applications · Metallic Glasses and Amorphous Alloys

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