Kinetic study of rapidly quenched Ni81P19 amorphous alloys

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Differential scanning calorimetry (DSC) measurements with different temperature programs were used to study the crystallization kinetics of Ni81P19 amorphous ribbons quenched from melt at different temperatures (920-1600°C) and from a constant melt temperature (920°C) at different quenching rates leading to different thickness. A mathematical model was proposed assuming that the nuclei are formed during the preparation and pretreatment of the samples and grow during the DSC experiments. Its validity was proved by the non-linear least squares evaluation of 44 DSC experiments. This model describes our experiments better than Avrami-Erofeev equation. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalThermochimica Acta
Volume351
Issue number1-2
DOIs
Publication statusPublished - Jun 1 2000

Fingerprint

Amorphous alloys
Differential scanning calorimetry
heat measurement
scanning
kinetics
Crystallization kinetics
Experiments
pretreatment
Temperature
ribbons
temperature
Quenching
mathematical models
quenching
crystallization
Mathematical models
preparation
nuclei
evaluation

Keywords

  • Crystallization kinetics
  • DSC
  • NiP amorphous alloy
  • Simultaneous least-squares evaluation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Kinetic study of rapidly quenched Ni81P19 amorphous alloys. / Virag, I.; Pöppl, L.; Várhegyi, G.

In: Thermochimica Acta, Vol. 351, No. 1-2, 01.06.2000, p. 79-84.

Research output: Contribution to journalArticle

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