Glass transition in As10Se90 chalcogenide glass: A kinetic study

被引：13

作者：

Elabbar, Abdalla A. ^{[1
]}

机构：

[1] Taibah Univ, Dept Phys, Fac ofScience, Madina, Saudi Arabia

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 23-24期

关键词：

Calorimetry; Kinetics; Amorphous materials; Glass transition; Activation energy;

D O I：

10.1016/j.physb.2008.09.027

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The kinetics of the glass transition in the As10Se90 chalcogenide glass was studied using differential scanning calorimetry (DSC) technique The activation energy of the glass transition was determined from the heating rate dependence of the glass transition temperature. Different kinetic models as well as isoconversional methods were used. Isoconversional analysis of the experimental data shows that the activation energy of glass transition process is not constant but varies with the degree of transformation (and hence with temperature) from the glassy to the supercooled phase. The variability of the activation energy with temperature was correlated with the dynamic fragility parameter in comparison with the previously published data of the glassy selenium. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：4328 / 4332

页数：5

共 24 条

[1] Study of the glass transition in amorphous Se by differential scanning calorimetry [J].

Abu-Sehly, A. A. ;

Abu El-Oyoun, M. ;

Elabbar, A. A. .

THERMOCHIMICA ACTA, 2008, 472 (1-2) :25-30

[2]

Angell C. A., 1985, Relaxations in Complex Systems, P3

[3] Kinetics of relaxation and crystallization of poly(ethylene terephthalate) [J].

Avramov, I ;

Avramova, N .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1999, 260 (1-2) :15-20

[4] Kinetics of structural relaxation of glass-forming melts [J].

Avramov, I .

THERMOCHIMICA ACTA, 1996, 280 :363-382

[5]

Bartenev G.M., 1951, Dokl. Akad. Nauk SSSR, V76, P227

[6] ANALYSIS OF STRUCTURAL RELAXATION IN GLASS USING RATE HEATING DATA [J].

DEBOLT, MA ;

EASTEAL, AJ ;

MACEDO, PB ;

MOYNIHAN, CT .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1976, 59 (1-2) :16-21

[7]

ELABBAR AA, 2008, J ALLOYS CO IN PRESS

[8]

KISSINGER HE, 1957, ANAL CHEM, V29, P1702, DOI DOI 10.1021/AC60131A045

[9] Glass transition activation energy, glass-forming ability and thermal stability of Se90In10-xSnx (x=2, 4, 6 and 8) chalcogenide glasses [J].

Lafi, Omar A. ;

Imran, Mousa M. A. ;

Abdullah, Ma'rouf K. .

PHYSICA B-CONDENSED MATTER, 2007, 395 (1-2) :69-75

[10] EFFECT OF SCANNING RATE ON GLASS-TRANSITION TEMPERATURE OF SPLAT-COOLED TE-85-GE-15 [J].

LASOCKA, M .

MATERIALS SCIENCE AND ENGINEERING, 1976, 23 (2-3) :173-177

← 1 2 3 →