Simulating the Solidification of Boride–Boride Eutectics
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Computer simulations of structurization in boride–boride ceramics are performed using the standard version of phase-field theory. The simulations reproduce the main properties of eutectic structures observed in experiments, i.e., spatial segregation of components, structure formation from an overcooled melt, and complete decomposition of the system when relaxes toward thermodynamic equilibrium. The eutectic colonies formed in the process of directional solidification and the dependence of spatial parameter of the emerging structures on the solidification rate are reproduced as well. The simulations demonstrate that the ordered fibrous structures are formed only in a certain range of solidification rates.
Keywordseutectic boride ceramics directional solidification structure formation phase-field theory
The authors are grateful to EOARD for financial support of this research effort under project 118003.
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