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Formation of ultrafine powders of binary alloy systems by plasma jet

Published online by Cambridge University Press:  31 January 2011

M. Umemoto ,
M. Udaka ,
K. Kawasaki  and
X. D. Liu
M. Umemoto*
Affiliation:
Faculty of Engineering, Department of Production Systems Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441, Japan
M. Udaka
Affiliation:
Faculty of Engineering, Department of Production Systems Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441, Japan
K. Kawasaki
Affiliation:
Netsuren Co. Ltd., 5893 Tamura Hiratsuka 254, Japan
X. D. Liu
Affiliation:
Faculty of Engineering, Department of Production Systems Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441, Japan
*
a) Address correspondence to this author.
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Abstract

Recently, a new method, i.e., a plasma jet method, was developed in our lab for the production of ultrafine powders. In the present work, we investigated the formation of binary Al–Fe, Al–Si, Fe–Si, Al–Cu, Al–Ni, Ni–Ti, Fe–Cu, and Fe–Ti ultrafine powders using this method. Premixed pure elemental powders of various compositions of Al–Fe, Al–Si, Fe–Si, Al–Cu, Al–Ni, Ni–Ti, Fe–Cu, and Fe–Ti were used as starting materials. These premixed powders were injected into the plasma jet of Ar–N2 working gas to form ultrafine powders. The obtained ultrafine powders were characterized by x-ray diffraction and transmission electron microscope to check the microstructures of ultrafine particles.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 6 , June 1998 , pp. 1511 - 1516
Copyright
Copyright © Materials Research Society 1998

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References

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