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Effect of SiC on the Oxidation Resistance Performance of C/ZrC Composite Prepared by Polymer Infiltration and Pyrolysis Process

2011; Trans Tech Publications; Volume: 675-677; Linguagem: Inglês

10.4028/www.scientific.net/msf.675-677.415

1662-9760

Dan Zhao, Chang Rui Zhang, Hai Feng Hu, Yu Di Zhang, Qi Kun Wang, Xin Bo He,

Innovative concrete reinforcement materials

Stitched carbon fiber cloth reinforced zirconium carbide composite (C/ZrC) was prepared by polymer infiltration and pyrolysis (PIP) process. C/ZrC-SiC composite was obtained by further introduction of SiC with PIP process in order to improve anti-oxidation property. The results show that 1.9vol% SiC addition improves the mechanical and anti-oxidation properties of C/ZrC composite. The flexural strength of C/ZrC is 247.9MPa, while that of C/ZrC-SiC is 273.1MPa. After oxidation in a muffle furnace at 1200°C for 30 minutes, the mass loss rate was reduced from 30.6% (C/ZrC) to 20.1% (C/ZrC-SiC), and the flexural strength and elastic modulus of C/ZrC were 56.7MPa and 5.7GPa, respectively, while those of C/ZrC-SiC were 122.9MPa and 17.2GPa, respectively.