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- Title
Testing Numerical Modeling of Phase Coarsening by Microgravity Experiments.
- Authors
Wang, K.; Glicksman, M.
- Abstract
Quantitative understanding of the morphological evolution that occurs during phase coarsening is crucial for optimization of processing procedures to control the final structure and properties of multiphase materials. Generally, ground-based experimental studies of phase coarsening in solids are limited to model alloy systems. Data from microgravity experiments on phase coarsening in Sn-Pb solid-liquid mixtures, executed on the International Space Station, are archived in NASA's Physical Sciences Informatics (PSI) system. In such microgravity experiments, it is expected that the rate of sedimentation will be greatly reduced compared with terrestrial conditions, allowing the kinetics of phase coarsening to be followed more carefully and accurately. In this work we tested existing numerical models of phase coarsening using NASA's PSI microgravity data. Specially, we compared the microstructures derived from phase-field and multiparticle diffusion simulations with those observed in microgravity experiments.
- Subjects
OSTWALD ripening; COMPOSITE materials; REDUCED gravity environments; SOLID-liquid interfaces; MICROSTRUCTURE; ZERO gravity experiments
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2017, Vol 69, Issue 12, p2825
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-017-2553-x