STUDY OF THE CRYSTALLIZATION KINETICS IN AMORPHOUS FE83P17 ALLOY

Authors
CSEREI A KUZMANN E POPPL L VERTES A
Citation
A. Cserei et al., STUDY OF THE CRYSTALLIZATION KINETICS IN AMORPHOUS FE83P17 ALLOY, Journal of radioanalytical and nuclear chemistry, 187(1), 1994, pp. 33-45
Citations number
7
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
187
Issue
1
Year of publication
1994
Pages
33 - 45
Database
ISI
SICI code
0236-5731(1994)187:1<33:SOTCKI>2.0.ZU;2-0
Abstract
The crystallization kinetics of Fe83P17 amorphous alloy has been studi ed by Mossbauer spectroscopy and X-ray diffractometry. The samples wer e annealed isothermally at two different temperatures (315-degrees-C a nd 325-degrees-C). During isothermal annealing of the samples three ph ases were observed: crystalline Fe3P phase, crystalline alpha-Fe phase and the amorphous phase. The value of the Avrami exponent was found t o be about 2.0 at each annealing temperature. This suggests that the g rowth rate of the crystals is controlled by volume diffusion and the n ucleation rate decreases during crystallization. The activation energy obtained for the overall crystallization process was 193 +/- 43 kJ mo l-1.