THERMODYNAMIC ASSESSMENT OF THE ZRO2-YO1.5 SYSTEM

被引：76

作者：

DU, Y

JIN, ZP

HUANG, PY

机构：

[1] Department of Materials Science and Engineering, Central South University of Technology, Changsha, Hunan

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 07期

关键词：

THERMODYNAMICS; CALCULATIONS; ZIRCONIA; YTTRIA; PHASE DIAGRAMS; MARTENSITIC PHASE-TRANSFORMATION; PARTIALLY-STABILIZED ZIRCONIA; ZRO2-Y2O3; SYSTEM; SOLID-SOLUTIONS; ZRO2; EQUILIBRIA;

D O I：

10.1111/j.1151-2916.1991.tb07142.x

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：

An optimal set of thermodynamic functions for the ZrO2-YO1.5 system are obtained using phase diagram and thermodynamic data. The liquid is described by a subregular solution model. Both cubic ZrO2 and YO1.5 solid solutions are regarded as one cubic solution, which is also treated as a subregular solution. The ordered Zr3Y4O12 phase is treated as a stoichiometric compound. A regular solution model is applied to the other solid solutions. Tentative equilibrium boundaries between monoclinic and tetragonal ZrO2 solid solutions are evaluated from information about the T0 line. The calculated phase diagram and thermodynamic functions agree well with experimental data.

引用

页码：1569 / 1577

页数：9

共 59 条

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