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Thermodynamic Analysis of Cubic Boron Nitride Synthesized under HPHT
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Xiao-Rui JI1, Da-Peng YANG2, Xiao-Hong YANG1, Tie-Chen ZHANG3, 4
Chinese Journal of High Pressure Physics | 2009, 23(6) : 467 - 470
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Chinese Journal of High Pressure Physics | 2009, 23(6): 467-470
Thermodynamic Analysis of Cubic Boron Nitride Synthesized under HPHT
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Xiao-Rui JI1, Da-Peng YANG2, Xiao-Hong YANG1, Tie-Chen ZHANG3, 4
Affiliations
  • 1.Department of Preparatory Course, Shenyang Institute of Engineering, Shenyang 110136, China
  • 2.College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130026, China
  • 3.College of Optical and Electronical Information, Changchun University of Science and Technology, Changchun 130024, China
  • 4.National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
Published: 2009-12-15
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We analyzed the relationships between growth condition and phase transition probability, and critical crystal radius respectively by thermodynamics. Then we calculated the critical grain radius rk for forming cBN crystal under high pressure and high temperature (HPHT). Under 6.0 GPa, 1 600 ℃, the rk is around 15 nm. In the thermodynamically stable region of cBN, the results show that under the same pressure, rk is increasing with the elevated temperature; under the same temperature, rk is decreasing with increasing pressure, and the smaller rk is, the higher phase transition probability is. These results are well consistent with experimental data.

synthesis condition  /  effect  /  critical crystal radius  /  transition probability
吉晓瑞, 杨大鹏, 杨晓红, 张铁臣. 高温高压合成立方氮化硼的热力学分析. 高压物理学报, 2009 , 23 (6) : 467 -470 .
Xiao-Rui JI, Da-Peng YANG, Xiao-Hong YANG, Tie-Chen ZHANG. Thermodynamic Analysis of Cubic Boron Nitride Synthesized under HPHT[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (6) : 467 -470 .
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Year 2009 volume 23 Issue 6
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Article Info
  • Receive Date：2008-07-09
  • Online Date：2026-10-30
  • Published：2009-12-15
Article Data
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History
  • Received：2008-07-09
  • Revised：2009-09-07
Funding
Affiliations
    1.Department of Preparatory Course, Shenyang Institute of Engineering, Shenyang 110136, China
    2.College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130026, China
    3.College of Optical and Electronical Information, Changchun University of Science and Technology, Changchun 130024, China
    4.National Laboratory of Superhard Materials, Jilin University, Changchun 130012, 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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