| Effect of SiC whiskers on the oxidation protective properties of SiC coatings for carbon/carbon composites |
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| 作者姓名： | SHI Xiaohong LI Hejun FU Qiangang LI Kezhi ZHANG Xiulian |
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| 作者单位： | The Key Laboratory of Superhigh Temperature Composites, Northwestern Polytechnical University, Xi＇an 710072, China |
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| 基金项目： | This work was financially supported by the National Natural Science Foundation of China for Distinguished Young Scholars （No. 50225210） and the Foundation of Aeronautic Science of China （No. 03H53044）. |
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| 摘 要： | In order to effectively employ the unique high temperature mechanical properties of carbon/carbon composite substrates, SiC coatings reinforced by SiC whiskers were prepared by pack cementation method. The effect of SiC whiskers on the oxidation resistance properties of the single-layer coating and double-layer coating was investigated. SiC whiskers in the single-layer SiC coating have little effect on the anti-oxidation property but obviously improve the thermal shock property. The double-layer coating with inner-layer reinforced coating exhibits more perfect anti-oxidation ability than the double-layer coating with SiC inner-layer coating.
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| 关 键 词： | 碳/碳化合物 碳化硅覆盖层 氧化保护 抗氧化能力 |
| 收稿时间： | 2005-01-09 |
Effect of SiC whiskers on the oxidation protective properties of SiC coatings for carbon/carbon composites |
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| SHI Xiaohong LI Hejun FU Qiangang LI Kezhi ZHANG Xiulian.Effect of SiC whiskers on the oxidation protective properties of SiC coatings for carbon/carbon composites[J].Rare Metals,2006,25(1):58-62. |
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| Authors: | SHI Xiaohong LI Hejun FU Qiangang LI Kezhi ZHANG Xiulian |
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| Affiliation: | 1. Electronic Materials Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea;2. Department of Nano Materials Science and Engineering, Korea University of Science and Technology, Daejeon 305-350, Republic of Korea;3. Department of Materials Science and Engineering, Hoseo University, 20 Hoseo-ro, Baebang-eup, Asan-Si, Chungcheongnam-do 336-795, Republic of Korea;1. Materials Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India;2. Neutron & X-ray Physics Facilities, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India |
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| Abstract: | In order to effectively employ the unique high temperature mechanical properties of carbon/carbon composite substrates, SiC coatings reinforced by SiC whiskers were prepared by pack cementation method. The effect of SiC whiskers on the oxidation resistance properties of the single-layer coating and double-layer coating was investigated. SiC whiskers in the single-layer SiC coating have little effect on the anti-oxidation property but obviously improve the thermal shock property. The double-layer coating with inner-layer reinforced coating exhibits more perfect anti-oxidation ability than the double-layer coating with SiC inner-layer coating. |
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| Keywords: | carbon/carbon composites SiC coating oxidation protection SiC whiskers |
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