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Title of article :
Influence of boron ion implantation on the oxidation behavior of CVD-SiC coated carbon-carbon composites Original Research Article
Author/Authors :
Y.-C. Zhu، نويسنده , , S. Ohtani، نويسنده , , Y. Sato، نويسنده , , N. Iwamoto، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
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Abstract :
Two-dimensional carbon-fiber reinforced carbon-carbon (C/C) composites were implanted with boron ions with 70–360 keV energy, then annealed in an argon atmosphere at 1550°C, and finally coated with a CVD-SiC coating of 50 μm. Isothermal and cyclic oxidation tests were performed on the CVD-SiC coated C/C composites in flowing dry air at 1300°C. The CVD-SiC coated C/C composites with boron ion implantation exhibited largely lower weight loss than those with a direct SiC coating. A thin boron carbide layer was formed in the surface region of the C/C composites by boron ion implantation. This boron carbide layer was found to contribute to enhancing the oxidation resistance of the CVD-SiC coated C/C composites.
Keywords :
A. C/C composites , B. Chemical vapor deposition , Oxidation , Implantation
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