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High Temperature Intermetallic Composites

Published online by Cambridge University Press:  22 February 2011

D. L. Anton*
Affiliation:
United Technologies Research Center, East Hartford, CT 06108
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Abstract

Many intermetallic compounds possess properties which make them excellent candidates for high temperature use in advanced gas turbine and aerospace applications. One method proposed for increasing damage tolerance in these brittle materials is to artificially composite them with high temperature fibers as utilized in both ceramic and glass composites. Fabrication of these composites is a formidable problem. One method of fabricating these structures, termed here Transient Liquid Phase Consolidation, TLPC, is demonstrated for a number of intermetallic/reinforcing fiber combinations. Thermal stability of the fibers in the intermetallic matrices was observed with FP Alumina being the most stable. Ambient temperature tensile property evaluations were made on monolithic, chopped and aligned FP fiber reinforced Al3 Ta with the aligned structure having the highest ultimate strength and the chopped fiber composite the greatest pseudo plastic response.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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