MOSSBAUER SPECTROSCOPIC STUDIES ON ULTRA FINE POWDERS OF NIZN-FERRITE

被引：2

作者：

MICHALK, C ^{[1
]}

KNESE, K ^{[1
]}

FISCHER, S ^{[1
]}

TOPELMANN, W ^{[1
]}

SCHELER, H ^{[1
]}

机构：

[1] TECH UNIV DRESDEN,SEKT CHEM,O-8027 DRESDEN,GERMANY

来源：

ISOTOPENPRAXIS | 1991年 / 27卷 / 02期

关键词：

FERRITE; MOSSBAUER EFFECT; POWDERS; RELAXATION; SOLID CLUSTERS; STRUCTURAL CHEMICAL ANALYSIS; X-RAY DIFFRACTION;

D O I：

10.1080/10256019108622472

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Mixed ferrite Ni(x)Zn(1-x)Fe2O4 was precipitated from a solution containing Ni2+,Zn2+ and Fe3+ ions in the molecular ratio of 1:1:4. The different aged samples were investigated by X-ray diffractometry and Moessbauer spectroscopy. The substance which was not aged contains beta-FeOOH and strongly distorted NiZn ferrite. Ageing leads to the formation of spinel structure. Moessbauer spectra of the aged samples exhibit a typical relaxation shape, which can be explained by occurring of small clusters possessing complete spinel structure.

引用

页码：73 / 75

页数：3

共 6 条

[1]

BHARGAVA SC, 1974, J PHYS-PARIS, V35, P669

[2] ON THE INFLUENCE OF THE DUAL IRON COORDINATION ON THE HYPERFINE FIELD IN BETA-FEOOH [J].