Critical evaluation and thermodynamic modeling of the Al-Mn-O (Al2O3-MnO-Mn2O3) system

被引：24

作者：

Chatterjee, Saikat ^{[1
]}

Jung, In-Ho ^{[1
]}

机构：

[1] McGill Univ, Dept Min & Mat Engn, Montreal, PQ H3A 0C5, Canada

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2014年 / 34卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Phase diagram; Thermodynamic modeling; Spinel; Cation distribution; QUASI-CHEMICAL MODEL; CRYSTAL-CHEMISTRY; PHASE-EQUILIBRIA; OPTIMIZATION; SPINEL; MNO-AL2O3; MGO-AL2O3; ALUMINATE; DIAGRAMS; GALAXITE;

D O I：

10.1016/j.jeurceramsoc.2013.12.017

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：

In the present study, a complete thermodynamic description of the Mn-Al-O (MnO-Mn2O3-Al2O3) system has been carried out. All the experimental phase diagram data from metal saturation to 1 atm oxygen partial pressure, thermodynamic data for spinel and liquid phases and structural data for spinel were critically evaluated and optimized in order to obtain Gibbs energies of all phases as functions of temperature and composition. The MnAl2O4-Mn3O4 spinel solution was modeled using the Compound Energy Formalism considering the cation distribution between tetrahedral and octahedral sites. The slag phase was described using the Modified Quasichemical Model considering both, the Mn2+ and Mn3+ species. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1611 / 1621

页数：11

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