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| Characterization of diamond–MWCNTs composite fiber synthesized under high pressure and high temperature |
| DENG Fuming 1; LU Xuejun 1;2; LIU Ruiping1; XU Guojun 2; CHEN Qiwu 1; LI Wenzhu1;3; |
1.Institute of Superhard Cutting Tool Materials; China University of Mining and Technology; Beijing Campus; Beijing 100083
2.Beijing Institute of Electro–machining; Beijing 100191
3.Department of Physics; Zhejiang University; Hangzhou 310027 |
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Cite this article:
DENG Fuming LU Xuejun LIU Ruiping XU Guojun CHEN Qiwu LI Wenzhu . Characterization of diamond–MWCNTs composite fiber synthesized under high pressure and high temperature. Chin J Mater Res, 2009, 23(6): 604-609.
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Abstract A regrown composite fiber was synthesized during the sintering of diamond under high pressure 5.8 GPa and high temperature 1500 for 1 min by using 3% MWCNTs as additive. The experiment results revealed that the outer layer of the fiber is composed of nano–polycrystalline diamond, while the inner fiber is composed of MWCNTs. It is proposed that the untransformed MWCNTs may act as a template for the regrown outer layer of nano–polycrystalline diamond fiber under high pressure and high temperature.
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Received: 02 April 2009
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| Fund: Supported by National Nature Science Foundation of China No.50342017 and the Natural Science Foundation of Beijing No.2042019. |
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