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Application of Sol‐Gel Processing Techniques for the Manufacture of Fiber‐Reinforced Ceramics
Author(s) -
RussellFloyd R. S.,
Harris B.,
Cooke R. G.,
Laurie J.,
Hammett F. W.,
Jones R. W.,
Wang Tianhe
Publication year - 1993
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1993.tb03992.x
Subject(s) - materials science , composite material , composite number , ceramic matrix composite , ceramic , fiber , porosity , context (archaeology) , toughness , matrix (chemical analysis) , stiffness , paleontology , biology
This paper discusses the application of freeze gelation of sil‐ica sols for the manufacture of low‐cost, net‐shape components in ceramic‐matrix composites (CMCs). A brief analysis is made of the central features which determine the stiffness, strength, and toughness of composite materials insofar as they may be applied to this particular class of CMCs. The critical processing parameters, relating mainly to the matrix phase, are reviewed and the results of the program so far obtained are interpreted in the context of this analysis. It is clear that interactions between processing parameters make optimization a complex process. In short‐fiber composites, matrix porosity dominates composite properties, while in continuous‐fiber systems, it is fiber degradation that controls the composite performance.