Thermodynamic determination of the cation distribution in NixMn1−γ−xFe2+γO4 ferrites |
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| Authors: | Qiangmin Wei Brian W. Robertson |
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| Affiliation: | Department of Mechanical Engineering and Center for Materials Research and Analysis, University of Nebraska-Lincoln, Lincoln, NE 68588, USA |
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| Abstract: | The cation distribution in the spinel ferrite system NixMn1−γ−xFe2+γO4 (x=0, 0.25, 0.5, 0.75 and γ=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. |
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| Keywords: | Thermodynamics Cation distribution Ferrite |
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