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Nucleation and growth of quasicrystaUine Pd–U–Si from the glassy state

Published online by Cambridge University Press:  29 June 2016

A. J. Drehman  and
A. R. Pelton
A. J. Drehman
Affiliation:
Ames Laboratory—USDOE, Iowa State University, Ames, Iowa 50011
A. R. Pelton
Affiliation:
Ames Laboratory—USDOE, Iowa State University, Ames, Iowa 50011
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Abstract

A Pd–U–Si metallic glass transforms upon annealing to a quasicrystalline phase of the same composition. Electron diffraction patterns of this material verify its icosahedral symmetry. Differential scanning calorimetry and transmission electron microscopy are used to obtain both the nucleation and growth kinetics of this glass-to-quasicrystal, first-order phase tranformation. The homogeneous nucleation rate of the quasicrystaUine phase in the metallic glass achieves a maximum at a temperture where its growth is still relatively slow.

Type
Articles
Information
Journal of Materials Research , Volume 1 , Issue 6 , December 1986 , pp. 741 - 745
Copyright
Copyright © Materials Research Society 1986

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