Viscosity and fragility of selected glass-forming chalcogenides

被引：7

作者：

Kostal, Petr ^{[1
]}

Bartak, Jaroslav ^{[2
]}

Wieduwilt, Torsten ^{[3
]}

Schmidt, Markus A. ^{[3
,4
,5
,6
]}

Malek, Jiri ^{[2
]}

机构：

[1] Univ Pardubice, Dept Inorgan Technol, Doubravice 41, Pardubice 53210, Czech Republic

[2] Univ Pardubice, Dept Phys Chem, Studentska 573, Pardubice 53210, Czech Republic

[3] Leibniz Inst Photon Technol, Albert Einstein Str 9, D-07745 Jena, Germany

[4] Friedrich Schiller Univ Jena, Abbe Ctr Photon, Max Wien Pl 1, D-07743 Jena, Germany

[5] Friedrich Schiller Univ Jena, Fac Phys, Max Wien Pl 1, D-07743 Jena, Germany

[6] Friedrich Schiller Univ Jena, Otto Schott Inst Mat Res, Fraunhoferstr 6, D-07743 Jena, Germany

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2022年 / 575卷

关键词：

Viscosity; Chalcogenides; Glass; Fragility; VISCOUS-FLOW; LIQUIDS; RELAXATION; TRANSITION; DEPENDENCE; BEHAVIOR; FIBERS; MELTS;

D O I：

10.1016/j.jnoncrysol.2021.121205

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Experimental viscosity data for (GeSe2)x(Sb2Se3)100-x melts (x = 50, 60 and 70), obtained by deploying the pressure-assisted melt filling technique (PAMFT), are presented. These data were combined with previously published literature data and fitted over a broad temperature range including glass, undercooled melt, and melt regions by the Mauro-Yue-Ellison-Gupta-Allan (MYEGA) equation. A detailed analysis of different fragility concepts for the studied glass-forming system as well as for other well-known chalcogenide glass formers is presented. On the basis of this extensive analysis, a simple procedure for carrying out viscosity data extrapolation was developed, and the validity of this procedure is discussed.

引用

页数：11

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