Computer simulation determines diffusion coefficient distribution in heterogeneous systems, suggesting high accuracy.
A new method for determining the distribution of the diffusion coefficient and its concentration dependence by analysis of the diffusion curve of the heterogeneous system is proposed. This method is computer simulation which is performed by assuming the number of component and the weight fraction of each component and by selecting the diffusion coefficient and the concentration coefficient from pseudorandom numbers. From the results of the application to theoretically synthetic diffusion curves, it became obvious that this method has high accuracy.
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石田 et al. (1973) studied this question.
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