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Moessbauer Spectroscopic Studies on Ultra Fine Powders of NiZn-Ferrite

 

作者: C. Michalk,   K. Knese,   S. Fischer,   W. Töpelmann,   H. Scheler,  

 

期刊: Isotopenpraxis Isotopes in Environmental and Health Studies  （Taylor Available online 1991）
卷期: Volume 27, issue 2  

页码: 73-75

 

ISSN:0021-1915

 

年代: 1991

 

DOI:10.1080/10256019108622472

 

出版商: Taylor & Francis Group

 

关键词: ferrite;moessbauer effect;powders;relaxation;solid clusters;structural chemical analysis;x-ray diffraction

 

数据来源: Taylor

 

摘要:

Mixed ferrite NixZn1−xFe2O4was 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 β-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 occuring of small clusters possessing complete spinel structure.

 

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