Mechanical Behavior of Sic Fiber-Sic Matrix Composite and Correlation to In Situ Fiber Properites at Room and High Temperatures

Shuqi Guo¹，Yutaka Kagawa¹

(1.Institute of Industrial Science, The University of Tokyo 7-22-1, Roppongi, Minato-ku, Tokyo 106-8558, Japan)

摘要: Tensile mechanical properties of PIP-processed 2D, plain-woven fabric. BN-coated Hi-NicalonTM SiC fiber-reinforced SiC matrix composite at room temperature (298 K), 1400 and 1600 K in air have been studied.Young''s modulus and tensile strength of the composite decrease with the increase of test temperature, especially at 1600 K a considerable reduction is observed. The tensile strength is found to be consistent with the value predicted by a global load sharing model, based on the actual in situ fiber strength properties which are obtained by a fracture mirror method.

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