Tensile Behavior of 2.5D C/SiCN Composites

Yi Xia; Hong Fang Li

doi:10.4028/www.scientific.net/AMM.217-219.67

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Tensile Behavior of 2.5D C/SiCN Composites

Tensile Behavior of 2.5D C/SiCN Composites

Abstract:

Tensile behavior of C fiber reinforced amorphous SiCN ceramic matrix composites (C/SiCN ) were investigated by tensile machine. The microstructure morphologies were observed by scanning electron microscope. The results indicate that the tensile stress-strain curves of C/SiCN composites dispaly typical elastic deformation and cracks propagation stages. The 1500°C pre-sabilization treatment of C/SiCN in vacuum facilitates room temperature tensile stress growth. The higher treated temperature such as 1900°C is yet opposite. The reasons were attributed to thermal stress relaxation of C/SiCN after pre-stabilization treatment in vacuum.

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Periodical:

Applied Mechanics and Materials (Volumes 217-219)

Pages:

67-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.217-219.67

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Online since:

November 2012

Authors:

Yi Xia, Hong Fang Li

Keywords:

Ceramic Matrix Composites, Mechanical Property, Microstructure

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