Preparation and Characterization of SiC/SiC Micro Ceramic Matrix Composites

Abstract:

SiC continuous fiber reinforced SiC ceramic matrix composites (SiC_f/SiC CMCs) and SiC fiber reinforced SiC micro ceramic matrix composites (SiC_f/SiC micro-CMCs) were prepared through polymer impregnation pyrolysis (PIP) progress, then the structures, mechanical properties and forming mechanisms of SiC_f/SiC CMCs were investigated. Results showed that volume shrinkage of SiC matrix occurred, and pyrolysates with bamboo-like layered structure were attached to the surface of SiC multifilament gradually. Furthermore, the mechanical properties of SiC_f/SiC micro-CMCs were consistent with SiC_f/SiC CMCs, so the PIP process parameters for the preparation of SiC_f/SiC CMC might be optimized primarily through SiC_f/SiC micro-CMCs, which could enhance the design and preparation efficiency of SiC_f/SiC CMCs obviously.Key word: polymer impregnation pyrolysis progress, micro ceramic matrix composites, forming mechanism

• Periodical: Advanced Materials Research (Volume 1058)
• Pages: 170-175
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1058.170
• Online since: November 2014
• Authors: Ming Wei Chen, Hai Peng Qiu, Jian Jiao, Xiu Qian Li, Yu Wang, Hao Zou
• Keywords: Forming Mechanism, Micro Ceramic Matrix Composites, Polymer Impregnation Pyrolysis Progress

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