Modeling growth, coalescence, and stability of helium precipitates on patterned interfaces
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© 2016 IOP Publishing Ltd. We develop a phase field simulation to model morphology evolution of helium (He) precipitates on solid-state interfaces. Our approach accounts for differences in precipitate contact angles arising from location-dependent interface energies and is capable of describing precipitate growth, coalescence, and de-wetting from the interface. We demonstrate our approach for interfaces with linear chains of wettable patches and find that different wetting energies and patch spacings give rise to four distinct classes of helium precipitate morphologies. Our method may be adapted to other scenarios involving fluids precipitating on non-uniform solid-state interfaces as well as to precipitation on patterned surfaces.
author list (cited authors)
Yuryev, D. V., & Demkowicz, M. J.