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The Formation of Metal/Metal-Matrix Nanocomposites by the Ultrasonic Dispersion of Immiscible Liquid Metals

Published online by Cambridge University Press:  10 February 2011

V. Keppens ,
D. Mandrus ,
J. Rankin  and
L. A. Boatner
V. Keppens
Affiliation:
Oak Ridge National Laboratory, Solid State Division, P.O. Box 2008, MS 6056, Oak Ridge TN 37831–6056, vkl@ornl.gov
D. Mandrus
Affiliation:
Oak Ridge National Laboratory, Solid State Division, P.O. Box 2008, MS 6056, Oak Ridge TN 37831–6056, vkl@ornl.gov
J. Rankin
Affiliation:
Brown University, Box D, 182 Hope St., Providence RI 02912
L. A. Boatner
Affiliation:
Oak Ridge National Laboratory, Solid State Division, P.O. Box 2008, MS 6056, Oak Ridge TN 37831–6056, vkl@ornl.gov
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Abstract

Ultrasonic energy has been used to disperse one liquid metallic component in a second immiscible liquid metal, thereby producing a metallic emulsion. Upon lowering the temperature of this emulsion below the melting point of the lowest-melting constituent, a metal/metal-matrix composite is formed. This composite consists of sub-micron-to-micron-sized particles of the minor metallic phase that are embedded in a matrix consisting of the major metallic phase. The zinc-bismuth case was used as a model system, and ultrasonic dispersion of a minor bismuth liquid phase was used to synthesize metal/metal-matrix composites. These materials were subsequently characterized using scanning electron microscopy and energy-dispersive x-ray analysis.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 457: Symposium V – Nanophase and Nanocomposite Materials II , 1996 , 243
Copyright
Copyright © Materials Research Society 1997

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References

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