Mechanical properties of thin pyrolitic carbon interphase SiC-matrix composites reinforced with near-stoichiometric SiC fibers

Tensile properties of Tyranno™-SA near-stoichiometric silicon carbide (SiC)-fiber–reinforced chemically vapor-infiltrated SiC-matrix composites with pyrolytic carbon interphases were experimentally studied. The influence of interphase thickness in a range of 60–300 nm on the tensile properties of the materials appeared to be generally minor. Thin interphase ( 600 nm) at the expense of composite stiffness.

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