Kinetics of glass transition of Ce65Al20Co15 metallic glass

被引：9

作者：

Zhang, Bingbing ^{[1
]}

Tang, Chengying ^{[1
,2
]}

Xu, Wei ^{[1
]}

Pan, Wenchao ^{[1
]}

Wang, Jiang ^{[1
]}

Zhou, Huaiying ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Guilin 541004, Guangxi, Peoples R China

[2] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Guangxi, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2013年 / 142卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

Glasses; Glass transitions; Thermodynamic properties; Differential scanning calorimetry (DSC); ACTIVATION-ENERGY; CRYSTALLIZATION BEHAVIORS; CHALCOGENIDE GLASSES; THERMAL-ANALYSIS; ALLOY; TEMPERATURE; SE; AL;

D O I：

10.1016/j.matchemphys.2013.08.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The kinetics of the glass transition of Ce65Al20Co15 metallic glass has been investigated using differential scanning calorimetry (DSC) technique with continuous heating of the sample at different heating rates. The dependence of the glass transition temperature (T-g) on the heating rate (beta) has been determined. The activation energy (E) of the glass transition has been obtained by employing Moynihan and Kissinger methods, respectively. It is found that the glass transition process cannot be described in terms of single activation energy. The variation of E with the extent of conversion (alpha) is further analyzed by using two iso-conversional methods. It is observed that the E of glass transition varies throughout the glass transition region. It is indicated that the transformation from amorphous to a supercooled liquid phase of Ce65Al20Co15 metallic glass is a complex process. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：707 / 711

页数：5

共 32 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] Kinetics of the glass transition in AS22S78 chalcogenide glass: Activation energy and fragility index [J].

Abu-Sehly, A. A. .

MATERIALS CHEMISTRY AND PHYSICS, 2011, 125 (03) :672-677

[3]

Akahira T, 1972, Res Rep Chiba Inst Technol, V16, P22

[4] Corrosion behavior of Cu55Zr35Ti10 metallic glass in the chloride media [J].

Cai, A. H. ;

Xiong, X. ;

Liu, Y. ;

An, W. K. ;

Zhou, G. J. ;

Luo, Y. ;

Li, T. L. .

MATERIALS CHEMISTRY AND PHYSICS, 2012, 134 (2-3) :938-944

[5] Kinetics of the glass transition in Se72Te23Sb5 chalcogenide glass: Variation of the activation energy [J].

Elabbar, Abdalla A. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 476 (1-2) :125-129

[6] DTA STUDIES ON THE CRYSTALLIZATION OF INXSE1-X CHALCOGENIDE GLASSES [J].

ELMOIZ, ABA ;

AFIFY, N ;

HAFIZ, MM .

PHYSICA B, 1992, 182 (01) :33-41

[7] Application of model-fitting and model-free kinetics to the study of non-isothermal dehydration of equilibrium swollen poly (acrylic acid) hydrogel: Thermogravimetric analysis [J].

Jankovic, B. ;

Adnadevic, B. ;

Jovanovic, J. .

THERMOCHIMICA ACTA, 2007, 452 (02) :106-115

[8] Estimating the activation energy for the non-isothermal crystallization of an amorphous Sb9.1Te20.1Se70.8 alloy [J].

Joraid, A. A. .

THERMOCHIMICA ACTA, 2007, 456 (01) :1-6

[9] REACTION KINETICS IN DIFFERENTIAL THERMAL ANALYSIS [J].

KISSINGER, HE .

ANALYTICAL CHEMISTRY, 1957, 29 (11) :1702-1706

[10] Kinetic parameters of glass transition and crystallization for glassy Se and glassy Se98M2 (M = In, Sb and Sn) alloys [J].

Kumar, H. ;

Mehta, N. .

MATERIALS CHEMISTRY AND PHYSICS, 2012, 134 (2-3) :834-838

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