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A fractal model for the crystallization kinetics

The Kolmogorov-Johnson-Mehl-Avrami (KJMA) equation is wildly applied in the crystallization kinetics, and Avrami exponent involved in the equation plays an important role in crystallization process. Here we show that the KJMA equation can be obtained by a fractal crystallization model, and the exponent is explained as the fractal dimension in time, which depends upon the chain length and molecule weight.
PAPER REVISED: 2020-06-12
PAPER ACCEPTED: 2020-06-16
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