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arXiv · cond-mat/9604179

Computer simulation of crystallization kinetics with non-Poisson distributed nuclei

Patric Uebele·Helmut Hermann
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Abstract

The influence of non-uniform distribution of nuclei on crystallization kinetics of amorphous materials is investigated. This case cannot be described by the well-known Johnson-Mehl-Avrami (JMA) equation, which is only valid under the assumption of a spatially homogeneous nucleation probability. The results of computer simulations of crystallization kinetics with nuclei distributed according to a cluster and a hardcore distribution are compared with JMA kinetics. The effects of the different distributions on the so-called Avrami exponent $n$ are shown. Furthermore, we calculate the small-angle scattering curves of the simulated structures which can be used to distinguish experimentally between the three nucleation models under consideration.

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Patric Uebele, Helmut Hermann. 1996-04-30. Computer simulation of crystallization kinetics with non-Poisson distributed nuclei. https://doi.org/10.1088/0965-0393%2F4%2F2%2F007

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