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Erosion Behavior of C/SiC Composites in Atomic Oxygen
Author(s) -
Liu Xiaochong,
Cheng Laifei,
Zhang Litong,
Yin Xiaowei,
Dong Ning,
Zhao Donglin,
Hong Zhiliang,
Li Zhonghua
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2011.02722.x
Subject(s) - materials science , composite material , composite number , x ray photoelectron spectroscopy , oxygen , fiber , erosion , fluence , coating , carbon fibers , amorphous solid , atomic oxygen , flexural strength , degradation (telecommunications) , diamond , irradiation , chemical engineering , electronic engineering , paleontology , chemistry , physics , organic chemistry , nuclear physics , engineering , biology
A T300 carbon fiber and a SiC ‐coated C/SiC composite made from the same fiber were studied in atomic oxygen environment. The carbon fiber shows significant degradation while the erosion rate of SiC ‐coating of C/SiC is about 50 times lower. Evidence shows that Si is preferentially etched from the SiC surface. And XPS information showed that amorphous carbon and diamond‐like carbonare periodically generated on the tested composite surface. Statistical analysis shows that the C/SiC specimens have no significant change in flexural properties after 1‐year fluence AO treatment.