THERMODYNAMICS OF IRON-MANGANESE MIXED OXIDES AT HIGH-TEMPERATURES

被引：23

作者：

FRANKE, P

DIECKMANN, R

机构：

[1] Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853-1501, Bard Hall

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1990年 / 51卷 / 01期

关键词：

mixed oxides; non-stoichiometry; phase diagram; Thermodynamics;

D O I：

10.1016/0022-3697(90)90131-X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The deviation from stoichiometry in dense polycrystalline (Fe1-xMnx)1-ΔO has been investigated thermogravimetrically as a function of the oxygen partial pressure and the crystal composition at T = 1000°C over the whole range of stability of this phase. The phase diagram of the system Fe-Mn-O at T = 1000°C has been reinvestigated. In addition, the two-phase regions and the activities of the pure iron and manganese oxides in the mixed phases (Fe, Mn)O and (Fe, Mn)3O4 have been calculated. © 1990.

引用

页码：49 / 57

页数：9