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Consolidation of tungsten-coated copper composite powder

Published online by Cambridge University Press:  31 January 2011

L. P. Dorfman ,
D. L. Houck  and
M. J. Scheithauer
L. P. Dorfman
Affiliation:
OSRAM SYLVANIA, Hawes Street, Towanda, Pennsylvania 18848
D. L. Houck
Affiliation:
OSRAM SYLVANIA, Hawes Street, Towanda, Pennsylvania 18848
M. J. Scheithauer
Affiliation:
OSRAM SYLVANIA, Hawes Street, Towanda, Pennsylvania 18848
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Abstract

Powder metallurgy (P/M) methods have expanded in recent years to include net-shape fabrication of W–Cu components. Sintering of W–Cu compacts made from previous powders has led to low density and copper bleedout. This paper presents test results on the consolidation of a new powder containing particles composed of a tungsten-coated copper core. This powder effectively eliminates copper bleedout at sintering thereby making possible the net-shape manufacturing of parts. Sintered articles are characterized by microstructural homogeneity and properties comparable to those of infiltrated W–Cu composites.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 8 , August 2002 , pp. 2075 - 2084
Copyright
Copyright © Materials Research Society 2002

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