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The Oxidation Behavior of SiC–ZrC–SiC‐Coated C/SiC Minicomposites at Ultrahigh Temperatures
Author(s) -
Liu Qiaomu,
Zhang Litong,
Liu Jia,
Luan Xingang,
Cheng Laifei,
Wang Yiguang
Publication year - 2010
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2010.04178.x
Subject(s) - materials science , silicon carbide , coating , composite material , zirconium carbide , ultimate tensile strength , chemical vapor infiltration , zirconium , chemical vapor deposition , carbide , layer (electronics) , ceramic , metallurgy , nanotechnology
Carbon‐fiber‐reinforced SiC (C/SiC) minicomposites were fabricated by the chemical vapor infiltration process. A multilayer of SiC–ZrC–SiC was coated on the C/SiC minicomposites. As comparison, the C/SiC minicomposites with SiC coating were also fabricated. The oxidation behavior of the coated C/SiC minicomposites was studied in the temperature range of 1800°–2000°C in a combustion wind tunnel. The tensile strength of the coated C/SiC minicomposites before and after the oxidation was measured. The results indicated that the SiC–ZrC–SiC‐coated C/SiC minicomposites performed better oxidation resistance at ultrahigh temperatures than the SiC‐coated ones. The effect of the additional zirconium carbide layer on the oxidation behavior of the minicomposites was discussed.