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| PREPARATION OF NICKEL-COATED DIAMOND BY HYDROTHERMAL PRESSURE HYDROGEN REDUCTION |
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Received:February 12, 2006
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| KeyWord:hydrogen reduction; diamond; nickel-coated; pre-treatment |
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| Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China |
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| Abstract: |
| The preparation of nickel-coated diamond on hydrothermal reduction with pressurized hydrogen is described in this paper.The main factors of influencing coating are discussed(pre-treatment of surface,stirring rate,temperature of reaction).The analysis of SEM shows that nickel is roughly dispersed on the surface of diamond particle by one time or two times coating process,nickel is evenly compact and sequential dispersed on its surface by three times coating process. |
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