Paper Title:
Crystallization of Amorphous Al85Ce5Ni10 Ribbon
  Abstract

In the present work the crystallization process of an aluminum-based amorphous metal have been investigated. Rapidly quenched Al85Ce5Ni10 ribbon has been produced by melt-spinning. The amorphous structure evolution during heating has been studied by a combination of X-ray diffraction (XRD) and differential scanning calorimetry (DSC). Thermograms obtained in continuous heating regime reveal a glass transition, Tg, resulting in a supercooled liquid temperature range of ∼16°C. Multiple crystallization events were observed by isothermal annealing of the as-quenched melt-spun ribbon at temperatures below Tg; precipitation of a metastable phase in the amorphous matrix has been observed. Further heating at increasing temperatures resulted in complete crystallization with α-Al and intermetallic compounds. Kinetics analyses indicate that crystallization occurs though nucleation and three-dimensional growth.

  Info
Periodical
Edited by
Dílson S. dos Santos
Pages
126-131
DOI
10.4028/www.scientific.net/MSF.570.126
Citation
C. Triveño Rios, S. Suriñach, M. D. Baró, C. Bolfarini, W. J. Botta Filho, C. S. Kiminami, "Crystallization of Amorphous Al85Ce5Ni10 Ribbon", Materials Science Forum, Vol. 570, pp. 126-131, 2008
Online since
February 2008
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