Thermal stability and glass transition kinetics in GeTeSb glasses by using non-isothermal measurement

被引：0

作者：

Heireche, M. M. ^{[1
]}

Heireche, L. ^{[2
]}

Belhadji, M. ^{[2
]}

机构：

[1] Higher Training Teachers Sch Oran, Dept Exact Sci, Oran, Algeria

[2] Univ Oran1 Ahmed Ben Bella, Lab Sci & Condensed Matter LSMC, Es Senia, Algeria

来源：

CHALCOGENIDE LETTERS | 2022年 / 19卷 / 10期

关键词：

Chalcogenide glasses; Differential scanning calorimetry; Glass transition temperature; Activation energy; CRYSTALLIZATION; SELENIUM;

D O I：

10.15251/CL.2022.1910.735

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we have analysed the thermal properties of three different compositions of chalcogenide glasses Ge15Te85-xSbx (x=0.5, 1, 1.5). The samples have been prepared using the melt quenching technique and the characterisation is done using X-ray diffraction. The compositional dependence on properties were studied using Differential Scanning Calorimetry (DSC) analysis using non-isothermal measurement. The glassy sample crystallized by two transition temperatures T-g1 and T-g2. The dependence of glass transition temperature on heating rate has been studied by Lasocka empirical relation and the Kissinger equation. As a result, the apparent activation energy for glass transition has been determined. Thermal stability has also been determined from the temperature difference between the onset crystallization and glass transition temperature.

引用

页码：735 / 741

页数：7