Laminated C-SiC matrix composites produced by CVI

W. Jack Lackey, Sundar Vaidyaraman, Karren L. More

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

A new type of composite, which consists of a reinforcement phase plus a matrix composed of many alternate thin layers of two different materials, has been prepared. CVI appears to be an appropriate process for the fabrication of this class of materials. We have successfully fabricated such a composite using the forced flow-thermal gradient CVI process. A carbon fibrous preform was infiltrated with alternate layers of C and SiC having thicknesses of 0.01 to 0.5 μm. For a fixed cycle time, layer thicknesses increased with distance from the fiber surface. Crack deflection patterns indicate that the laminated matrix may contribute to mechanical toughness.

Original languageEnglish
Pages (from-to)113-116
Number of pages4
JournalJournal of the American Ceramic Society
Volume80
Issue number1
DOIs
StatePublished - Jan 1997

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