Stability region and oxygen stoichiometry of manganese ferrite

被引：27

作者：

Bonsdorf, G

Schafer, K

Teske, K

Langbein, H ^{[1
]}

Ullmann, H

机构：

[1] Tech Univ Dresden, Inst Anorgan Chem, D-01062 Dresden, Germany

[2] Univ Leipzig, Fak Phys & Geowissensch, D-04103 Leipzig, Germany

来源：

SOLID STATE IONICS | 1998年 / 110卷 / 1-2期

关键词：

manganese ferrite; oxygen stoichiometry; phase diagram; solid electrolyte coulometry;

D O I：

10.1016/S0167-2738(98)00118-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The phase stability and oxygen stoichiometry of manganese ferrite were investigated for dependence on the oxygen partial pressure at 400 degrees C-900 degrees C. As starting material, a reactive Mn-Fe-hydroxide precursor with defined composition was used. The samples were characterized by X-ray diffractometry, Mossbauer spectroscopy and magnetic measurements. The oxygen non-stoichiometry delta in differently prepared samples MnFe2O4+delta was determined by a solid electrolyte-based coulometric technique (SEC). (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：73 / 82

页数：10

共 19 条

[1]

*AM CER SOC, 1969, PHAS DIAGR CER S1

[2]

Barin I.P.D., 1989, Thermochemical Data of Pure Substances

[3]

Bode M., 1994, GIT FACHZEITSCHRIFT, V38

[4]

Bonsdorf G, 1997, SOLID STATE IONICS, V101, P351