Thermodynamic determination of the cation distribution in NixMn1-γ-xFe2+γO4 ferrites

被引:5
作者
Wei, QM [1 ]
Robertson, BW
机构
[1] Univ Nebraska, Dept Mech Engn, Lincoln, NE 68588 USA
[2] Univ Nebraska, Ctr Mat Res & Anal, Lincoln, NE 68588 USA
关键词
thermodynamics; cation distribution; ferrite;
D O I
10.1016/S0022-4596(03)00382-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The cation distribution in the spinel ferrite system Ni(x)Mn(1-y-x)Fe(2+y)O4 (x = 0, 0.25, 0.5, 0.75 and y = 0.137) has been calculated analytically in complete form as a function of thermodynamic parameters. A generalized theoretical framework based on the O'Neill-Navrotsky model and Newton methods was used to solve a multicomponent system for up to 10 cation species. The relationship between the cation distribution and composition is given. The results are shown to agree with the available experimental results. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:279 / 283
页数:5
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