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Theoretical Study on High Pressure Liquid Sintering of Polycrystalline Diamond Compact
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Fu-Ming DENG1, 2, Guo-Gang ZHAO1, 2, Zhen-Ting WANG1, 2, Gang GUO1, Xiao-Hui LIU1, Qi-Wu CHEN1
Chinese Journal of High Pressure Physics | 2004, 18(3) : 252 - 260
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Chinese Journal of High Pressure Physics | 2004, 18(3): 252-260
Theoretical Study on High Pressure Liquid Sintering of Polycrystalline Diamond Compact
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Fu-Ming DENG1, 2, Guo-Gang ZHAO1, 2, Zhen-Ting WANG1, 2, Gang GUO1, Xiao-Hui LIU1, Qi-Wu CHEN1
Affiliations
  • 1.Department of Materials Science and Engineering, China University of Mining and Technology (Beijing Campus), Beijing 100083, China
  • 2.Heilongjiang Institute of Science and Technology, Haerbin 150027, China
Published: 2004-09-05
Outline
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Based on the theoretical analysis of the interaction between diamond and melted cobalt under HP/HT conditions, the effect of temperature and carbon content of the melted cobalt on the sintering process of diamond dissolution and polycrystalline diamond growth are discussed. It is suggested that the diamond is preferable to graphite to dissolve in the melted cobalt under HP/HT and there are three sintering mechanisms in the diamond-cobalt sintering system, that is, the mechanism of diamond rearrangement, dissolution and precipitation and formation of the direct bonding of diamond to diamond. The melted cobalt with different carbon content and temperature can play an important role to weak or cease the covalent bond of diamond at its surfaces, to promote the rearrangement of diamond, to realize the transportation of diamond atoms and finally to form the diamond to diamond bonding structure of polycrystalline diamond. According to the high pressure liquid sintering theory of diamond proposed in this paper, some experimental phenomena found during the HP/HT sintering process of polycrystalline diamond compacts could be explained rationally.

polycrystalline diamond compacts (PDC)  /  graphitization  /  liquid sintering  /  dissolution and precipitation
邓福铭, 赵国刚, 王振廷, 郭港, 刘晓慧, 陈启武. 聚晶金刚石复合体超高压液相烧结理论研究. 高压物理学报, 2004 , 18 (3) : 252 -260 .
Fu-Ming DENG, Guo-Gang ZHAO, Zhen-Ting WANG, Gang GUO, Xiao-Hui LIU, Qi-Wu CHEN. Theoretical Study on High Pressure Liquid Sintering of Polycrystalline Diamond Compact[J]. Chinese Journal of High Pressure Physics, 2004 , 18 (3) : 252 -260 .
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Year 2004 volume 18 Issue 3
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  • Receive Date：2003-10-15
  • Online Date：2026-10-31
  • Published：2004-09-05
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History
  • Received：2003-10-15
  • Revised：2004-01-13
Funding
Affiliations
    1.Department of Materials Science and Engineering, China University of Mining and Technology (Beijing Campus), Beijing 100083, China
    2.Heilongjiang Institute of Science and Technology, Haerbin 150027, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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