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
收藏
页码：49 / 57
页数：9
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