Differential scanning calorimetry (DSC) measurements with different tempera
ture programs were used to study the crystallization kinetics of Ni81P19 am
orphous ribbons quenched from melt at different temperatures (920-1600 degr
ees C) and from a constant melt temperature (920 degrees C) at different qu
enching rates leading to different thickness. A mathematical model was prop
osed assuming that the nuclei are formed during the preparation and pretrea
tment of the samples and grow during the DSC experiments. Its validity was
proved by the non-linear least squares evaluation of 44 DSC experiments, Th
is model describes our experiments better than Avrami-Erofeev equation. (C)
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