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《Journal of Synthetic Crystals》 2003-06
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Study on the Characteristics of Diamond Prepared through NiMnCo Powder Catalyst

GUO Hong, LU Cai-tao, JING Hai, XU Jun, YANG Bi-cheng, MA Zi-li, SHI Li-kai (Beijing General Research Institute of Non-ferrous Metals, Beijing 100088, China)  
The morphologies of diamonds synthesized with NiMnCo powder and slice catalysts and the (111) and (100) crystal surfaces were studied by scanning electron microscope (SEM) . Meanwhile the distribution of the inclusions inside the crystal was studied through image analyzer. And the mechanical performance of the diamond was also analyzed. The results indicate that compared with the diamond synthesized with the slice catalyst, the diamond synthesized with NiMnCo powder catalyst is a typical hexa-and oct-hedron, and the rate of integrate of diamond is high. The surfaces of (111) and (100) are intact and transparent with less inclusions which are fine and dispersive. Therefore, the diamond synthesized with the powder catalyst has higher static pressure strength and heat stability.
【Fund】: 国家自然科学基金(No.50001001)
【CateGory Index】: TQ164
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