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Transformation Kinetics for Crystalline, Quasicrystalline, and Glassy Alloys in the Binary Al100-xMnx and Pseudobinary Al84-ySiyMn16Systems

Published online by Cambridge University Press:  26 February 2011

B. G. Bagley  and
H. S. Chent
B. G. Bagley
Affiliation:
Bell Communications Research Red Bank, New Jersey 07701
H. S. Chent
Affiliation:
AT&T Bell Laboratories Murray Hill, New Jersey 07974
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Abstract

The condensed state phase transition energetics and kinetics are reported for specific compositions within the Al-Si-Mn system which demonstrate crystal → crystal, quasicrystal→ crystal, and glass.→crystal structural transformations. Our observations, and their interpretation, for the solid state crystalline AI(Mn)→Al+Al6 Mn reaction and the crystallization of glassy Al54Si 30Mn16 are consistent with the anticipated mode for these transformations. The nature of the quasicrystal→ crystal transformation, consistent with our observations, is an enigma.

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