Compatibility of potential reinforcing ceramics with Ni and Fe aluminidesThe compatibility of candidate ceramic reinforcement materials with intermetallic matrices for high temperature composite systems has been evaluated. Powders of FeAl and NiAl were mixed with ceramic powders and consolidated by hot isostatic pressing and subsequent heat treatment. The microstructures of these composites and the nature of the ceramic/matrix interfaces were assessed using a wide variety of electron-beam techniques. The system FeAl/TiB2 was found to be particularly promising. The matrix appears to be bonded to the ceramic particles, which may be the result of diffusion of Fe into the ceramic. The particles stabilized in a previously unreported monoclinic crystal structure, rather than the equilibrium hexagonal form exhibited by the binary compound.
Document ID
19920064250
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Moser, J. A. (NASA Lewis Research Center Cleveland, OH, United States)
Aindow, M. (NASA Lewis Research Center Cleveland, OH, United States)
Clark, W. A. T. (Ohio State University Columbus, United States)
Draper, S. (NASA Lewis Research Center Cleveland, OH, United States)
Fraser, H. L. (Ohio State University Columbus, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Composite Materials
Meeting Information
Meeting: MRS Symposium on Intermatallic Matrix Composites