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, 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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