Abstract
Fiber matrix interfaces in continuous fiber reinforced composites have been suspected as the regions of imperfections, high dislocation densities, residual stresses, etc., which affect the material’s properties. This paper examines micro-structural features of graphite/aluminum using analytical transmission electron microscopy. Included is the determination of dislocation densities at the interfaces by weak beam imaging technique. Also observed are tangled dislocation networks at the fiber matrix interfaces.
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References
H.L. Marcus, “Interface Character of Aluminum-Graphite Metal Matrix Composites” (Report UTMSE-83-1, University of Texas, Austin, 1983).
S.R. Nutt and R.W. Carpenter, “Precipitate Phases in Al-SiC Composites,” Proceedings of the 42nd Annual Meeting of the Electron Microscopy of America, ed. G.W. Bailey (San Francisco Press, San Francisco, CA, 1984), pp. 490–491.
M. Vogelsang, R.J. Arsenault and R.M. Fisher, “An In-Situ HVEM Study of Dislocation Generation at Al/SiC Interfaces in Metal Matrix Composites,” Metallurgical Transactions A, 17 (1986), pp. 379–389.
S.P. Rawal, L.F. Allard and M.S. Misra, “Microstructural Characterization of Interfaces in Diffusion-Bonded and Cast Gr/Mg Composites” (Paper presented at 115th TMS Annual Meeting, New Orleans, Louisiana, 6 March 1986), in press.
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Additional information
L.F. Allard is currently principal research scientist at American Cyananriid Company in Stamford, Connecticut.
S.P. Rawal is staff engineer at Martin Marietta Aerospace in Denver, Colorado.
M.S. Misra is manager of the Advanced Materials Group at Martin Marietta Aerospace in Denver, Colorado. He is also a member of TMS.
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Allard, L.F., Rawal, S.P. & Misra, M.S. Characterization of Interfaces in Metal Matrix Composites. JOM 38, 40–42 (1986). https://doi.org/10.1007/BF03258580
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DOI: https://doi.org/10.1007/BF03258580