Sum-Rule Relations among Phenomenological Coefficients: Application to Segregation and Chemical Diffusion in Multicomponent Alloys and Mixed Ceramic Oxides |
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| Journal | Defect and Diffusion Forum (Volume 249) |
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| Volume | Diffusion in Solids - Past, Present and Future |
| Edited by | B.S. Bokstein and B.B. Straumal |
| Pages | 17-26 |
| DOI | 10.4028/www.scientific.net/DDF.249.17 |
| Citation | Irina V. Belova et al., 2006, Defect and Diffusion Forum, 249, 17 |
| Online since | January, 2006 |
| Authors | Irina V. Belova, Graeme E. Murch |
| Keywords | Chemical Diffusion, Mixed Oxides, Multicomponent Alloys, Phenomenological Coefficients, Segregation |
| Abstract | In this overview, we discuss the sum-rule relating phenomenological coefficients in randomly mixed systems and consider several applications to collective diffusion problems. These applications include intrinsic diffusion multicomponent alloys, chemical diffusion in strongly ionic mixed cation crystals and demixing of cations in randomly mixed quaternary transition metal oxides. In each case a substantial simplification is possible as a result of the sum-rule. |
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