Origins of Abnormal Grain Growth

When there is a large grain with a radius a is embedded in a matrix of fine normal grains, similar to Eq. (8.11), its growth rate can be expressed as [36] 

Because the number of the fine normal grains is much larger than that of the abnormal grain, the time dependence of a can be described in a similar way to that given by Eq. (8.14)  

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