Crystallization of supercooled liquid of selenium:: The comparison of kinetic analysis of both isothermal and non-isothermal DSC data

被引：25

作者：

Holubova, Jana

Cernosek, Zdenek

Cernoskova, Eva

Cerna, Andrea

机构：

[1] Univ Pardubice, Dept Gen & Inorgan Chem, CZ-53210 Pardubice, Czech Republic

[2] Acad Sci Czech Republ, Inst Macromol Chem, Joint Lab Soild State Chem, CZ-53210 Pardubice, Czech Republic

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 20期

关键词：

glasses; selenium; DSC; kinetics; crystallization;

D O I：

10.1016/j.matlet.2006.01.070

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Isothermal crystallization of supercooled melt of selenium was studied in a wide temperature range by means of differential scanning calorimetiy (DSC). Isothermal crystallization of selenium was described by Johnson-Mehl-Avrami (JMA) model, the JMA kinetic exponent was found to be similar to 3.5. The activation energy of isothermal crystallization was determined E-a=83 kJ/mol. The non-isothermal crystallization of selenium was also studied and the results of kinetic analysis of non-isothermal data were compared with results obtained from isothermal measurements. The applicability of currently used method of kinetic analysis of non-isothermal data is discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2429 / 2432

页数：4

共 15 条

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[2] Medium range order studied in selenide glasses by 77Se NMR [J].