期刊
CORROSION SCIENCE
卷 80, 期 -, 页码 154-163出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.11.019
关键词
Ceramic matrix composite; SEM; High temperature corrosion
A sandwich-structured composite, which contains an inner layer of C-f/SiC between two outer layers of C-f/SiC-ZrB2-ZrC, was fabricated by a technique that involved rapid chemical vapor infiltration and precursor infiltration and pyrolysis. In both cyclic and single ablation conditions for one thousand seconds by an oxyacetylene flame, the composites exhibited good ablation-resistant properties and low strength reductions after ablation because of the introduction of a great amount of UHTCs into the outer layers and the small thickness of the ablation-affected area, respectively. The ablation rate and strength reduction in cyclic ablation were lower than those in single ablation. (C) 2013 Elsevier Ltd. All rights reserved.
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