Journal
ADVANCED MATERIALS AND PROCESS TECHNOLOGY, PTS 1-3
Volume 217-219, Issue -, Pages 67-+Publisher
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/AMM.217-219.67
Keywords
Ceramic matrix composites; Microstructure; Mechanical property
Funding
- National Natural Science Foundation of China [50772089]
- Science Foundation of Henan University of Technology
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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 degrees C pre-sabilization treatment of C/SiCN in vacuum facilitates room temperature tensile stress growth. The higher treated temperature such as 1900 degrees 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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