Abstract

After carefully ruling out the known sample preparation artifacts, high-angle annular detector dark-field scanning transmission electron microscopy, nanobeam composition analysis and energy-filtered imaging suggest that phase separation occurs upon heating in the Al85Ni5Y6Fe2Co2 amorphous ribbon prior to the onset of primary crystallization, but not in its as-prepared state. The length scale of the phase separation appears to correlate with the dimensions of the nanocrystals formed upon crystallization. (c) 2006 Acta Materialia, Inc. Published by Elsevier Ltd. All rights reserved.

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