ASSESSMENT OF THE CAO-AL2O3 SYSTEM

被引：231

作者：

HALLSTEDT, B

机构：

[1] Division of Physical Metallurgy, Royal Institute of Technology, Stockholm

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 01期

关键词：

alumina; calcia; modeling; phase diagrams; thermodynamics;

D O I：

10.1111/j.1151-2916.1990.tb05083.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

A thermodynamic assessment of the quasi‐binary system CaO‐Al2O3 has been made using a computerized CALPHAD (calculation of phase diagrams) technique. The actual optimization was carried out with a computer program for the optimization of parameters in thermodynamic models called PARROT. The liquid phase is described by a simple two‐sublattice subregular solution model with Ca2+ and Al3+ as cationic species and O2‐ as anionic species. All solid phases are treated as stoichiometric compounds. A consistent set of parameters describing the system is presented, and numerous comparisons with experimental data are made. There is a lack of accurate data in the high‐alumina part of the system, and the importance of a better knowledge of the CaO·6Al2O3 phase is stressed. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：15 / 23

页数：9

共 52 条

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[2]

MASS-SPECTROMETRIC AND ELECTROCHEMICAL STUDIES OF THERMODYNAMIC PROPERTIES OF LIQUID AND SOLID-PHASES IN THE SYSTEM CAO-AL2O3 [J].