Starting from the results obtained for the isothermal crystallization, the expressions are determined giving the transformation rate for a non‐isothermal regime (DTA). This model enables us to determine experimentally the apparent energies of the growth rate (E = 0.89 eV) and nucleation rate (U = 1.3 eV). It is also shown that a temperature range exists where the heterogeneous crystallization with cylindrical growth is preponderant and, for higher temperatures, the crystallization becomes homogeneous with crystallites of size greater than the film thickness.
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