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Combustion Synthesis of Niobium Aluminide Matrix Composites

Published online by Cambridge University Press:  15 February 2011

C. R. Kachelmyer  and
A. Varma
C. R. Kachelmyer
Affiliation:
University of Notre Dame, Department of Chemical Engineering, Notre Dame, IN 46556
A. Varma
Affiliation:
University of Notre Dame, Department of Chemical Engineering, Notre Dame, IN 46556
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Abstract

Combustion synthesis of NbAl3-matrix composites with Al2O3 and B additions was studied using the thermal explosion mode. The addition of B to the reaction mixture resulted in the formation of NbB2, small amounts of NbB and unreacted Al. The Al2O3 addition did not affect the NbAl3-matrix reaction completion but the final product density increased with increasing Al2O3 loading. In both NbAl3-matrix composites, the reaction was initiated above the melting point of Al.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 350: Symposium U – Intermetallic Matrix Composites III , 1994 , 33
Copyright
Copyright © Materials Research Society 1994

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