| Summary: | 碩士 === 國立臺北科技大學 === 製造科技研究所 === 104 === In this study, using numerical method to solve the simplest phase-field model with different nanopost geometries and array densities and cool fluxes. Discuss and analyze the difference between phase and the relationship of nanopost. Compare the simulation results to experiment data and images.
Dendritic structures grow bias of simulations have a good consistency with observed in the experiment. In same time, lower density array can expand to the entire computation space, higher density array as the beginning stay in the middle. Whether the phase diagram or chart with the cool flux increased, the growth of dendritic structures more clearly, good nanopost array covering and larger spaces fill rate. Two initial growth of dendritic structures, illustrates the separated behavior of dendritic structures. Control nanopost geometry and array density and cool flux can form the desired pattern.
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