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Change of quasilattice constant during amorphous-to-quasicrystalline phase transformation in Zr65Al7.5Ni10Cu7.5Ag10 metallic glass

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5 Author(s)
Jiang, J.Z. ; Department of Physics, Building 307, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark ; Rasmussen, A.R. ; Jensen, C.H. ; Lin, Y.
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The amorphous-to-quasicrystalline phase transformation in a Zr65Al7.5Ni10Cu7.5Ag10 metallic glass has been investigated by monitoring the quasilattice constant and the composition of quasicrystalline particles in the samples annealed in vacuum at 663 K for various times. It is found that the quasilattice constant decreases with annealing time and saturates after 90 min while the zirconium and silver contents in quasicrystalline particles differ from those in the remaining amorphous matrix. The results provide evidence that the amorphous-to-quasicrystalline phase transformation in the Zr65Al7.5Ni10Cu7.5Ag10 metallic glass is a nonpolymorphous reaction. © 2002 American Institute of Physics.

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Applied Physics Letters  (Volume:80 ,  Issue: 12 )