Abstract

Abstract The structure of the interfaces in metal matrix composites are reviewed and a classification of composite systems according to interface type is proposed. Changes in the interface resulting from processing or high-temperature exposure are discussed and related to corresponding changes in tensile properties. Particular interest is attached to two types of interface which are found in titanium matrix composites (reactive, Class III systems) and aluminum matrix composites (pseudo Class I system). Growth of the interface compound with titanium matrices results in three modes of control of the fracture process. Aluminum matrix composites form the initial bond through oxide films but this breaks down and results in changes in the fracture process. Models are advanced to explain these results.

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