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Reactive hot pressing of aluminum matrix composites

Published online by Cambridge University Press:  31 January 2011

H. J. Brinkman ,
J. Duszczyk  and
L. Katgerman
H. J. Brinkman*
Affiliation:
Laboratory of Materials Science, Delft University of Technology, Delft, The Netherlands
J. Duszczyk
Affiliation:
Laboratory of Materials Science, Delft University of Technology, Delft, The Netherlands
L. Katgerman
Affiliation:
Laboratory of Materials Science, Delft University of Technology, Delft, The Netherlands
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A method is described for the production of dense aluminum matrix composites from elemental powders in one processing step by reactive hot pressing (RHP). It encompasses both the exothermic conversion of reactants to composite product and the following hot compaction of the porous composite product. The RHP method described in this paper takes into account the gas evolution accompanying the exothermic process, ensures complete conversion of reactants, and avoids adverse reactions between aluminum matrix and graphite tooling material. In situ sample temperature measurements enable proper process control, in particular the timing of the full densification step of the hot reaction product.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 11 , November 1999 , pp. 4246 - 4250
Copyright
Copyright © Materials Research Society 1999

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References

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