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SiC-MoSi_2/ZrO_2-MoSi_2 coating to protect C/C composites against oxidation 认领 引用 被引量：8
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作者 付前刚 张佳平 +2 位作者 张正中 李贺军 孙粲 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第7期2113-2117,共5页
To improve the oxidation resistance of carbon/carbon （C/C） composites in air at high temperatures, a SiC- MoSi2/ZrO2-MoSi2 coating was prepared on the surface of C/C composites by pack cementation and slurry method.... To improve the oxidation resistance of carbon/carbon （C/C） composites in air at high temperatures, a SiC- MoSi2/ZrO2-MoSi2 coating was prepared on the surface of C/C composites by pack cementation and slurry method. The microstructures and phase compositions of the coated C/C composites were analyzed by scanning electron microscopy and X-ray diffraction, respectively. The result shows that the SiC-MoSi2/ZrO2-MoSi2 coating is dense and crack-free with a thickness of 250-300 μm. The preparation and the high temperature oxidation property of the coated composites were investigated. The as-received coating has excellent oxidation protection ability and can protect C/C composites from oxidation for 260 h at 1773 K in air. The excellent anti-oxidation performance of the coating is considered to come from the formation of ZrSiO4, which improves the stability of the coating at high temperatures. 展开更多
关键词 carbon/carbon composites SiC-MoSi2/ZrO2-MoSi2 coating oxidation resistance
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