Atom Based Grain Extraction and Measurement of Geometric Properties
2018
We introduce an accurate, self-contained and automatic atom based numerical algorithm to characterize grain distributions in two dimensional Phase Field Crystal simulations. Four input parameters must be set by the user and their effect is described. We compare the method with hand segmented and known test grain distributions to show that the algorithm is able to extract grains and measure their area, perimeter and other geometric properties with high accuracy. We also compare the proposed method to a simpler but less accurate grid based approach. This method is currently tuned to extract data from Phase Field Crystal simulations in the hexagonal lattice regime but the framework may be extended to more general problems.
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