SYMPOSIA PAPER Published: 01 January 1969
STP44705S

Interfacial Stability of Eutectic Composites

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Composites formed by unidirectional solidification of eutectic alloys usually exhibit a preferred crystallography of both phases and low-energy interfaces. Because of this, eutectic composites have been found to exhibit excellent microstructural stability and property retention after elevated temperature exposure. Some coarsening occurs at very high temperature without changing the basic aligned composite microstructure. The rate of coarsening is greater in finer microstructures and is related to the amount of interfacial area and the specific interfacial energy between phases.

Author Information

Salkind, M, J
Sikorsky Aircraft Division of United Aircraft Corp., Stratford, Conn.
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Details
Developed by Committee: D30
Pages: 149–167
DOI: 10.1520/STP44705S
ISBN-EB: 978-0-8031-6034-7
ISBN-13: 978-0-8031-6188-7