Ostwald Ripening Analysis Using Phase-Field Model
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- Ode Machiko
- Graduate Student, the University of Tokyo
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- Suzuki Toshio
- Department of Metallurgy, the University of Tokyo
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- Kim Seong Gyoon
- RASOM and Department of Materials Science and Engineering, Kunsan National University
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- Kim Won Tae
- RASOM and Department of Physics, Chongju University
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Abstract
The Ostwald ripening phenomena is studied using a phase-field model. The phase-field parameters are obtained at a thin interface limit proposed by Kim et al. It is shown that small solid particles preferably melt out, and large particles grow and agglomerate due to the curvature undercooling. Calculation results are consistent with the LSW rule. The rate constant of average particle radius is estimated as 0.57 at 0.2 solid fraction. The change in shape of the invariant particle size distribution due to finite volume fraction agrees with experiment and a statistical model. The difference of the calculation results by Diepers et al. and by the present work is discussed. The change in the shape of the invariant size distribution depending on solid fraction is also shown. The shape becomes more wide and symmetry with increase of the solid fraction.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 42 (11), 2410-2414, 2001
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204248067840
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- NII Article ID
- 130004451395
- 10007487020
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- NII Book ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BD38XosFartg%3D%3D
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 5991043
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed