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- Title
First-Principles Calculations of Spinodal Ordering Temperature and Diffuse Intensity Scattering Spectrum for Fe-Pt System.
- Authors
Mohri, Tetsuo
- Abstract
First-principles calculations are performed to derive a L1-disorder phase diagram, spinodal ordering temperature and short-range-order diffuse-intensity spectrum for the Fe-Pt system. L1-disorder transition is confirmed to be of the first order by both the temperature dependence of the long-range-order parameter and the large separation between the transition temperature and spinodal ordering temperature. Short-range-order diffuse-intensity maximum appears at 〈100〉 which is intensified as the spinodal-ordering temperature is approached. The consistency among all these results supports the reliability of the description of the cluster variation free energy used for this study.
- Subjects
TRANSITION temperature; IRON; PHASE diagrams; PHASE equilibrium; PHYSICAL metallurgy
- Publication
Journal of Phase Equilibria & Diffusion, 2011, Vol 32, Issue 6, p537
- ISSN
1547-7037
- Publication type
Article
- DOI
10.1007/s11669-011-9962-2