Crystallization kinetics of glassy As2Se3

被引：15

作者：

Cernosková, E

Holubová, J

Cernosek, Z

机构：

[1] Chalmers Tekniska Hogskola, S-41296 Gothenburg, Sweden

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

[3] Acad Sci Czech Republic, Joint Lab Solid State Chem, CZ-53210 Pardubice, Czech Republic

[4] Univ Pardubice, Joint Lab Solid State Chem, CZ-53210 Pardubice, Czech Republic

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 56卷 / 01期

关键词：

arsenic triselenide; differential scanning calorimetry; isothermal crystallization kinetics; melting enthalpy;

D O I：

10.1023/A:1010175307204

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Isothermal crystallization of bulk As,Se, glass was studied in temperature range 270-360 degrees C. Johnson-Mehl-Avrami (JMA) equation describes the crystallization process in the whole temperature range. By means of analysis of JMA equation the temperature dependence of kinetic exponent n was found, its value changes from 3.8 to 1.9 with increasing temperature. The relationship between the value of n and crystal morphology was briefly discussed. Furthermore the value of apparent activation energy E was determined as well as melting enthalpy. Temperature dependence of crystal growth rate was also determined.

引用

页码：423 / 428

页数：6

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[2]

Frumar M, 1997, CHEM PAP, V51, P310

[3]

Frumar M, 1997, NATO ASI 3 HIGH TECH, V36, P123

[4] VISCOSITY AND CRYSTALLIZATION KINETICS OF AS2SE3 [J].