Crystallization processes in Ge2Sb2Se4Te glass

被引：4

作者：

Svoboda, Roman ^{[1
]}

Bezdicka, Petr ^{[2
]}

Gutwirth, Jan ^{[3
]}

Malek, Jiri ^{[1
]}

机构：

[1] Univ Pardubice, Fac Chem Technol, Dept Phys Chem, Pardubice 53210, Czech Republic

[2] AS CR, Inst Inorgan Chem, Vvi, Husinec Rez 25068, Czech Republic

[3] Univ Pardubice, Fac Chem Technol, Dept Gen & Inorgan Chem, Pardubice 53210, Czech Republic

来源：

MATERIALS RESEARCH BULLETIN | 2015年 / 61卷

关键词：

Glasses; Chalcogenides; Differential scanning calorimetry (DSC); X-ray diffraction; Crystal structure; MULTICOMPONENT CHALCOGENIDE GLASSES; DIFFERENTIAL THERMAL-ANALYSIS; KINETIC-ANALYSIS; SE; TEMPERATURE; TRANSITION; SB;

D O I：

10.1016/j.materresbull.2014.10.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) analysis were used to study crystallization in Ge2Sb2Se4Te glass under non-isothermal conditions as a function of the particle size. The crystallization kinetics was described in terms of the autocatalytic Sestak-Berggren model. An extensive discussion of all aspects of a full-scale kinetic study of a crystallization process was undertaken. Dominance of the crystallization process originating from mechanically induced strains and heterogeneities was confirmed. Substitution of Se by Te was found to enhance the manifestation of the bulk crystallization mechanisms (at the expense of surface crystallization). The XRD analysis showed significant dependence of the crystalline structural parameters on the crystallization conditions (initial particle size of the glassy grains and applied heating rate). Based on this information, a new microstructural crystallization mechanism, indistinguishable by DSC, was proposed. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：207 / 214

页数：8

共 30 条

[1] Kinetics of phase change I - General theory [J].

Avrami, M .

JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (12) :1103-1112

[2]

Avrami M., 1971, J CHEM PHYS, V7, P177

[3]

Avrami M., 1940, J CHEM PHYS, V8, P212, DOI [10.1063/1.1750631, DOI 10.1063/1.1750631]

[4] GLASS-FORMING ABILITY IN THE GE-SB-TE-SE QUATERNARY SYSTEM [J].

BORDAS, S ;

CASASVAZQUEZ, J ;

CLAVAGUERA, N ;

CLAVAGUERAMORA, MT .

THERMOCHIMICA ACTA, 1979, 28 (02) :387-393

[5] Room temperature ultrasonic wave velocity and attenuation in Ge10Se80-xSbxTe10 bulk glassy samples [J].

Elshafie, A .

MATERIALS CHEMISTRY AND PHYSICS, 1997, 51 (02) :182-185

[6] Reverse Monte Carlo modeling of the neutron and X-ray diffraction data for new chalcogenide Ge-Sb-S(Se)-Te glasses [J].

Fabian, M. ;

Svab, E. ;

Pamukchieva, V. ;

Szekeres, A. ;

Todorova, K. ;

Vogel, S. ;

Ruett, U. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2013, 74 (10) :1355-1362

[7]

Friedman H. L., 1964, KINETICS THERMAL DEG

[8] Crystallography Open Database (COD): an open-access collection of crystal structures and platform for world-wide collaboration [J].

Grazulis, Saulius ;

Daskevic, Adriana ;

Merkys, Andrius ;

Chateigner, Daniel ;

Lutterotti, Luca ;

Quiros, Miguel ;

Serebryanaya, Nadezhda R. ;

Moeck, Peter ;

Downs, Robert T. ;

Le Bail, Armel .

NUCLEIC ACIDS RESEARCH, 2012, 40 (D1) :D420-D427

[9]

Johnson WA, 1939, T AM I MIN MET ENG, V135, P416

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

KISSINGER, HE .

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

← 1 2 3 →