期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 178, 期 18, 页码 1186-1190出版社
ELSEVIER
DOI: 10.1016/j.mseb.2013.07.001
关键词
Ceramic-matrix composites; Mechanical properties; High-temperature properties
资金
- National Natural Science Foundation of China [51172256, 51142010, 51202271]
- University of Jinan [XBS1310]
Three-dimensional 4-directional C-f/ZrC-SiC composites were successfully fabricated by polymer infiltration and pyrolysis combined with ZrC precursor impregnation. The microstructure and mechanical properties of the composites were studied. The composite with PyC/SiC interphase had a bulk density of 2.14 g/cm(3), an open porosity of 10%, and a bending stress of 474MPa, and exhibited a non-brittle failure behavior due to propagation and deflection of cracks, and fracture and pullout of fibers. Their high-temperature oxidation resistance and anti-ablation properties were evaluated using a muffle furnace and plasma wind tunnel test. Results show that the composites have good mechanical and excellent ablative properties. (C) 2013 Elsevier All rights reserved.
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