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Epitaxial dependence of the melting behavior of In nanoparticles embedded in Al matrices

Published online by Cambridge University Press:  31 January 2011

H. W. Sheng ,
G. Ren ,
L. M. Peng ,
Z. Q. Hu  and
K. Lu
H. W. Sheng
Affiliation:
National Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
G. Ren
Affiliation:
Beijing Laboratory of Electron Microscopy, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
L. M. Peng
Affiliation:
Beijing Laboratory of Electron Microscopy, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
Z. Q. Hu
Affiliation:
National Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences Shenyang 110015, People's Republic of China
K. Lu
Affiliation:
National Key Laboratory for RSA, and International Center for Materials Physics, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
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Abstract

Nanometer-sized In particles (5−45 nm) embedded in the Al matrix were prepared by using melt-spinning and ball-milling techniques. Different crystallographic orientationships between In nanoparticles and the Al matrix were constructed by these two approaches. Melting behavior of the In particles were investigated by means of differential scanning calorimetry (DSC). It was found that the epitaxially oriented In nanoparticles (with the Al matrix) in the melt-spun sample were superheated to about 0−38 °C, whereas the randomly oriented In particles in the ball-milled sample melted below its equilibrium melting point by about 0−22 °C. We suggest that the melting temperature of In nanoparticles can be either enhanced or depressed, depending on the epitaxy between In and the Al matrix.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 1 , January 1997 , pp. 119 - 123
Copyright
Copyright © Materials Research Society 1997

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