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
收藏
页码：2429 / 2432
页数：4
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