Effect of Silicon Carbide Interlayers on the Mechanical Behavior of T800-HB-Fiber-Reinforced Silicon Carbide-Matrix Composites

Abstract:

The influence of the fiber/matrix interlayers on the mechanical properties of T800-HB fiber (a kind of carbon fiber) (the fibrous is three-dimensional four-directional braided) reinforced silicon carbide (SiC) matrix composites has been evaluated in this paper. The composites were fabricated through PIP process, and SiC layers were deposited as fiber/matrix interlayers by the isothermal CVD process. Fiber/matrix debonding and relatively long fiber pullouts were observed on the fracture surfaces. The mechanical properties were investigated using three-point bending test and single-edge notched beam test. The T800-HB/SiC composites exhibited high mechanical strength, and the flexural strength and fracture toughness were 511.5MPa and 20.8MPa•m1/2, respectively.

• Periodical: Key Engineering Materials (Volumes 368-372)
• Pages: 1844-1846
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.368-372.1844
• Online since: February 2008
• Authors: Xin Gui Zhou, Hai Jiao Yu, Bo Yun Huang, Jian Gao Yang, Ze Lan Huang
• Keywords: Carbon Fiber (CF), Composite, Silicon Carbide (SiC)

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