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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Computational Thermodynamics and Kinetics
Presentation Title O-8: Effect of Free Surface on Grain Growth by Monte Carlo Potts Model
Author(s) Sokyun Hong, Kyung Jong Lee
On-Site Speaker (Planned) Sokyun Hong
Abstract Scope It is generally accepted that grain growth in thin films is quite different from that in bulk materials. Normal grain growth slows down or even stops when average grain size is comparable to thickness and with subsequent proper conditions, abnormal grain growth occurs. The mechanism for stagnation of grain growth in thin films is not yet clear. The anisotropy of grain boundary and grain boundary groove drag near free surface are suggested to be main causes of stagnation. Recently, Phase field and Monte Carlo simulation of grain growth in thin films are studied but results are not enough to explain the experimental results. In this study, the improved logic to apply free surface effect on grain growth by Monte Carlo Potts model is suggested. Results of grain size and topology distribution of new model are analyzed, and it shows good agreement with the experimental results.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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O-13: Kinetic Monte Carlo Simulations of Effect of Grain Boundary Variability on Forming Times of RRAM Conductive Filaments
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