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Precipitation of an icosahedral phase in amorphous Al90Fe5Ce5 alloy

Chuanjiang Zhang1, Youshi Wu1,3, Xueling Cai1, Guorong Zhou1, Yuanchang Shi1, Hua Yang1 and Si Wu2

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LETTER TO THE EDITOR

Isothermal and non-isothermal differential scanning calorimetry experiments were carried out to study rapidly solidified Al90Fe5Ce5 alloy. Microstructural analysis suggests that icosahedral nanoparticles are homogeneously distributed in the matrix of annealed amorphous Al90Fe5Ce5 alloy. The presence and homogeneous distribution of icosahedral structure units and icosahedral short-range domains appear to be critical for the formation and stability of the amorphous phase.


PACS

64.75.-g Phase equilibria

61.44.Br Quasicrystals

61.46.-w Structure of nanoscale materials

81.40.Gh Other heat and thermomechanical treatments

Subjects

Soft matter, liquids and polymers

Nanoscale science and low-D systems

Condensed matter: structural, mechanical & thermal

Dates

Issue 27 (9 July 2001)

Received 21 February 2001, in final form 8 May 2001

Published 22 June 2001



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