期刊
CERAMICS INTERNATIONAL
卷 40, 期 7, 页码 11387-11392出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.02.127
关键词
Ceramic-matrix composites; High-temperature properties; Microstructures
资金
- National Natural Science Foundation of China [51372099]
- Doctoral Fund of University of Jinan [XBS1310]
- Program for Scientific Research Innovation Team in Colleges and Universities of Shandong Province
The ablation property of a three-dimensional 4-directional C-f/ZrC-SiC composite was determined by using a plasma wind tunnel facility. The composite exhibited excellent configurational stability with surface temperature of 2400 K for 600 s. After ablation, the composite showed a mass loss rate of 7.0 x 10(-4) g/s and a linear recession rate of 9.0 x 10(-4) mm/s. The viscous binary glass mixture of ZrO2 and SiO2 on the surface of the composite mainly contributed to the improvement in the ablation property. After ablation, the composite showed three different zones, namely, the ablation center region, ablation transition region, and unablation region, because of the temperature and pressure gradients. (c) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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