Decomposition and Crystallization Induced by High-Energy Ball-Milling


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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.



Solid State Phenomena (Volume 119)

Edited by:

Chang Kyu Rhee






Y. S. Kwon et al., "Decomposition and Crystallization Induced by High-Energy Ball-Milling", Solid State Phenomena, Vol. 119, pp. 1-4, 2007

Online since:

January 2007




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