What are factors which may limit the growth of a poly crystal grain at high temperatures?

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Rosivaldo Xavier Silva

I used a Pechine method. Actually, the sample obtained at 1100°C has bigger porosity. Maybe the porosity in this case restricted the growth...

Thank you for the reference.

Yurii Ivakin

Should be considered a specific system.

From general considerations grain size depends on the ratio of the rates of growth and nucleation. With the temperature this ratio changes.