Computer simulation of crystallization kinetics with non-Poisson distributed nuclei
Patric Uebele, Helmut Hermann
1996
Modelling and Simulation in Materials Science and Engineering
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
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... ributions 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.
doi:10.1088/0965-0393/4/2/007
fatcat:gfbfcs23c5azpgrog76cuc7h6u