Chemical homogeneity of nanocrystalline Zn-Mn spinel ferrites obtained by high-energy ball milling

被引:32
作者
Arcos, D
Valenzuela, R
Vázquez, M
Vallet-Regí, M [1 ]
机构
[1] Univ Complutense Madrid, Fac Farm, Dept Inorgan & Bioinorgan Chem, E-28040 Madrid, Spain
[2] Univ Complutense Madrid, RENFE, Inst Appl Magnetism, Madrid, Spain
[3] Natl Autonomous Univ Mexico, Inst Mat Res, Mexico City 04510, DF, Mexico
[4] CSIC, Inst Sci Mat, Madrid, Spain
关键词
D O I
10.1006/jssc.1998.7882
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Nanocrystalline Zn-Mn spinel ferrites have been obtained by high-energy ball milling from precursor oxides and carbonates (1) and hydroxides and oxides (2), From the measurement of initial magnetic permeability as a function of temperature, differences in chemical homogeneity have been observed. Structural and Curie point data reveal that dissolution of Mn2+ into the spinel structure is assisted by the presence of a hydroxide and an acid oxide. For fixed milling conditions, the influence of precursors leads to different chemical, structural, and magnetic properties in ferrites obtained by mechanochemical synthesis. (C) 1998 Academic Press.
引用
收藏
页码:10 / 16
页数:7
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