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Preface
Decomposition and Crystallization Induced by High-Energy Ball-Milling
p.1
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Decomposition and Crystallization Induced by High-Energy Ball-Milling

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Abstract:

Phase transformation induced by ball-milling was studied in this work. It was found that amorphous Fe90Zr10 ribbons undergo crystallization into BCC α-Fe(Zr) under milling in an AGO-2 mill. The decomposition degree of the amorphous phase increased with increasing milling time and intensity. Analyses of samples milled at different speeds suggested that the observed crystallization is a deformation-induced process rather than a thermally induced one. In addition, the decomposition behavior of a FeSn intermetallic under ball-milling was carefully studied. Upon milling a large amount of the FeSn intermetallic decomposed into Fe5Sn3 and FeSn2, where the average grain size of the product phases stayed nearly constant with milling-time. It is suggested that the mechanically driven decomposition of FeSn results from local melting of powder particles due to high temperature pulses during ball collisions.

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Periodical:

Solid State Phenomena (Volume 119)

Pages:

1-4

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.119.1

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Online since:

January 2007

Authors:

Young Soon Kwon, Ji Soon Kim, Cheol Eeh Kim

Keywords:

Amorphous Materials, Ball Milling, Crystallization

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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