The kinetics of the glass transition of silicate glass measured by fast scanning calorimetry

被引：23
|
作者：
Schawe, Jurgen E. K. [1 ]
Hess, Kai-Uwe [2 ]
机构：
[1] Mettler Toledo GmbH, Analyt, Heuwinkelstr 3, CH-8606 Nanikon, Switzerland
[2] Ludwig Maximilians Univ Munchen, Dept Geo & Umweltwissensch, Theresienstr 41, D-80333 Munich, Germany
来源：
THERMOCHIMICA ACTA | 2019年 / 677卷
关键词：
Glass transition; Silicate glasses; Fast scanning calorimetry; STRUCTURAL RELAXATION; COOLING RATE; CHARACTERISTIC LENGTH; DSC MEASUREMENTS; SHEAR VISCOSITY; TEMPERATURE; CRYSTALLIZATION; DEPENDENCE; HEAT; POLY(ETHYLENE-TEREPHTHALATE);
D O I：
10.1016/j.tca.2019.01.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
First results of the cooling rate dependent vitrification process of a silicate melt in the cooling rate range between 0.1 and 30,000 K/s are presented. These results are compared with the temperature dependence of the shear viscosity. The results indicate that rule of the proportionality between shear viscosity and cooling rate holds for the silicate glass. It Is also indicated that the thermal retardation time is significantly larger than the shear stress relaxation time derived from viscosity measurements.
引用
收藏
页码：85 / 90
页数：6
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