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Acta Metall Sin  2009, Vol. 45 Issue (4): 503-506    DOI:
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PREPARATION AND ANTI–OXIDATION PROPERTY OF SiC/SiC–MoSi2 COATING ON C/C COMPOSITE
FU Qiangang; LI Hejun; LI Kezhi; SHI Xiaohong
C/C Composites Research Center; Northwestern Polytechnical University; Xi’an 710072
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FU Qiangang LI Hejun LI Kezhi SHI Xiaohong. PREPARATION AND ANTI–OXIDATION PROPERTY OF SiC/SiC–MoSi2 COATING ON C/C COMPOSITE. Acta Metall Sin, 2009, 45(4): 503-506.

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Abstract  

To protect carbon/carbon (C/C) composites against oxidation at high temperature, SiC inner layer and SiC–MoSi2 multi–layer outer coatings were prepared on the surface of C/C composites by a two–step technique of pack cementation and slurry coating. The microstructure of the as–received coating was analyzed by XRD and SEM. The oxidation behaviors of the coated samples at high temperatures in air were studied by isothermal oxidation tests. The results show that the as–received multi–layer SiC/SiC–MoSi2 coating posseses a crack–free structure and excellent oxidation resistance, which could protect C/C composites from oxidation in air for more than 110 h at 1500 ℃and for more than 100 h at 900 ℃Excellent anti–oxidation ability of the SiC/SiC–MoSi2 coating is attributed to its multi–layer and multi–phase structure and the formation of protective SiO2 film on its surface during oxidizing.

Key words:  C/C composite      SiC inner coating      SiC--MoSi2 outer coating      anti--oxidation     
Received:  13 October 2008     
ZTFLH: 

TB33

 
Fund: 

Supported by National Natural Science Foundation of China (Nos.50802075 and 90716024)

URL: 

https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2009/V45/I4/503

[1] Huang J F, Li H J, Xiong X B, Zeng X R, Li K Z, Fu Y W, Huang M. New Carbon Mater, 2005; 20: 373
(黄剑锋, 李贺军, 熊信柏, 曾燮榕, 李克智, 付业伟, 黄敏. 新型炭材料, 2005; 20: 373)
[2] Wang B, Li K Z, Li H J, Fu Q G, Wang X, Lan F T. J Inorg Mater, 2007; 22: 737
(王 标, 李克智, 李贺军, 付前刚, 王 翔, 兰逢涛. 无机材料学报, 2007; 22: 737)
[3] Fu Q G, Li H J, Li K Z, Shi X H, Hu Z B, Huang M. Carbon, 2006; 44: 1866
[4] Huang J F, Li H J, Zeng X R, Li K Z. Surf Coat Technol, 2006; 200: 5379
[5] Fu Q G, Li H J, Li K Z, Shi X H, Huang M. Carbon, 2007; 45: 892
[6] Federico S, Monica F, Milena S. Carbon, 2003; 41: 2105
[7] Zeng X R, Li H J, Yang Z. J Chin Ceram Soc, 1999; 27: 8
(曾燮榕, 李贺军, 杨峥. 硅酸盐学报, 1999; 27: 8)
[8] Zeng X R, Li H J, Yang Z, Zhu X Q. Chin J Aeronaut, 1999; 12(2): 111
[9] Zhao J, Guo Q G , Shi J L. Surf Coat Technol, 2006; 201: 1861
[10] Ran L P, Yi M Z, Jiang J X. New Carbon Mater, 2006; 21: 231
(冉丽萍, 易茂中, 蒋建献. 新型炭材料, 2006; 21: 231)
[11] Zeng X R, Li H J, Yang Z, Kang M K. Trans Met Heat Treat, 2000; 21(2): 64
(曾燮榕, 李贺军, 杨 峥, 康沫狂. 金属热处理学报, 2000; 21(2): 64)

[1] WU Xiaojun CHENG Wen QIAO Shengru ZOU Wu ZHANG Peng ZHANG Xiaohu. EVOLUTION OF PORES IN C/C COMPOSITE DURING RESIN IMPREGNATION-CARBONIZATION[J]. 金属学报, 2009, 45(11): 1402-1408.
[2] HOU Dangshe; LI Kezhi; LI Hejun; FU Qiangang; WEI Jian; HE Yonggang. Study on the SiC-TaSi2/MoSi2 Multilayer Oxidation Protective Coating for Carbon/Carbon composites[J]. 金属学报, 2008, 44(3): 331-335 .
[3] . UNSTABLE TEMPERATURE FIELD FOR THERMAL-GRADIENT CVI DENSIFICATION PROCESS[J]. 金属学报, 2006, 42(10): 1046-1050 .
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