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Thermodynamic analysis of chemical compatibility of ceramic reinforcement materials with niobium aluminides

Published online by Cambridge University Press:  31 January 2011

Ajay K. Misra
Ajay K. Misra
Affiliation:
Sverdrup Technology, Inc., NASA Lewis Research Center Group, Cleveland, Ohio 44135
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Abstract

Niobium aluminide-based intermetallic matrix composites are currently being considered as potential high-temperature structural materials. One of the key factors in the selection of a reinforcement material is its chemical stability in the matrix. In this study, chemical interactions between two niobium aluminides, Nb3Al and Nb2Al, and several potential ceramic reinforcement materials, which include carbides, borides, nitrides, and oxides, were analyzed from thermodynamic considerations. Several thermodynamically stable reinforcement materials have been identified for these two matrices.

Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 7 , July 1990 , pp. 1561 - 1566
Copyright
Copyright © Materials Research Society 1990

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