The phase transformations of a metastable crystalline phase obtained
under high pressure occurring upon heating are considered:
amorphization and subsequent crystallization. A model for the
kinetics of these processes taking into account the capability for
competitive formation of crystalline and amorphous phases at the
boundaries of the grains of the initial phase is constructed.
Expressions for the volume fractions as well as for the nucleation
rates and growth velocities of the phases formed are obtained.
Differential scanning calorimetry curves are described. A numerical
analysis of the equations of the kinetics and a comparison with the
results from experiment are carried out with reference to
Cd43Sb57 alloy.
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