Thermodynamical miscibility in 0.8[xB2O3-(1-x)P2O5]-0.2K2O glasses

被引:14
作者
Ahoussou, A. P.
Rogez, J. [1 ]
Kone, A.
机构
[1] Univ Paul Cezanne, CNRS, UMR 6122, Lab TECSEN, F-13397 Marseille 20, France
[2] Univ Cocody, UFR SSMT, Chim Phys Lab, Abidjan 22, Cote Ivoire
关键词
oxide glasses; borates; phosphate; calorimetry; glass transition; thermodynamics;
D O I
10.1016/j.jnoncrysol.2006.11.004
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
The thermodynamical miscibility in 0.8[xB(2)O(3)-(1 - x)P2O5]-0.2K(2)O glasses has been studied by measuring the glass transition temperature and the mixing enthalpy. Measurements have been performed by differential scanning calorimeter and hydrofluoric acid solution calorimetry at 298 K. The enthalpies of mixing are significantly negative over the whole range of composition. The results are discussed in terms of intermolecular associations. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:271 / 275
页数:5
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