Development of structural order during supercooling of a fragile oxide melt

被引：36

作者：

Hennet, L. ^{[1
]}

Pozdnyakova, I.

Bytchkov, A.

Price, D. L.

Greaves, G. N.

Wilding, M.

Fearn, S.

Martin, C. M.

Thiaudiere, D.

Berar, J. -F.

Boudet, N.

Saboungi, M. -L.

机构：

[1] Ctr Rech Mat Haute Temp, F-45071 Orleans 2, France

[2] Univ Wales, Dept Phys, Aberystwyth SY23 3BZ, Dyfed, Wales

[3] CCLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[4] Synchrotron Soleil, F-91192 Gif Sur Yvette, France

[5] Lab Cristallog Grenoble, F-38042 Grenoble 9, France

[6] Ctr Rech Mat Div, F-45071 Orleans 02, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 2007年 / 126卷 / 07期

关键词：

D O I：

10.1063/1.2646812

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

The authors have studied the structural evolution of the fragile glass-forming liquid CaAl2O4 during supercooling from the stable liquid phase to the cold glass below T-g. The evolution is characterized by a sharpening of the first diffraction peak and a shortening of the average nearest-neighbor bond length around 1.25T(g), indicating an increase in the degree of both intermediate-range and short-range orders occurring close to the dynamical crossover temperature. The cooling curve developed a kink at this temperature, indicating a simultaneous change in thermodynamic properties. (c) 2007 American Institute of Physics.

引用

页数：4

共 29 条

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SPECTROSCOPY SIMULATION AND SCATTERING, AND THE MEDIUM RANGE ORDER PROBLEM IN GLASS [J].