Dislocation Mechanism of Diamond Crystal Growth from Fe-Ni-C System at High Temperature-High Pressure

材料科学技术（英文）, 2002, 18(1): 66-68.

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1.College of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaZhaoyin HAONational Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, ChinaXiumei DONGSecondary Technician School of Weifang Labor Management B

2.College of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaZhaoyin HAONational Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, ChinaXiumei DONGSecondary Technician School of Weifang Labor Management B

3.College of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaZhaoyin HAONational Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, ChinaXiumei DONGSecondary Technician School of Weifang Labor Management B

4.College of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaZhaoyin HAONational Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, ChinaXiumei DONGSecondary Technician School of Weifang Labor Management B

5.National Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, China

6.Secondary Technician School of Weifang Labor Management Bureau, Weifang 261031, China

基金项目: 国家自然科学基金(Grant. No 59971027)

Dislocation Mechanism of Diamond Crystal Growth from Fe-Ni-C System at High Temperature-High Pressure

Keywords： High temperature-high pressure

Some dislocations, which are generated in the diamond single crystal during the diamond crystal growth from Fe-Ni-C system, may affect diamond crystal growth mode at high temperature-high pressure (HPHT). The concentricdiamond single crystals were observed by scanning electron microscopy (SEM). The concentric dislocation loopsformation process and their effect on the diamond crystal growth mode were analyzed. It should be noted thatwhatever the nature of the dislocation is, should the Burgers vector of dislocation has a component at the directionnormal to the growth interface, the dislocation will make the face parallel to the growth interface grow into spiralface. The presence of consecutive spiral steps on the diamond crystal surface also provides a direct evidence of thedislocation mechanism of diamond crystal growth.

参考文献

[1]	F P Bundy;H M Hall;HMStrong .[J].NATURE,1955,176,51
[2]	H M Strong;R E Hanneman .[J].Journal of Chemical Physics,1967,46:3668.
[3]	Z Y Hao;Y F Chen;LZChen .[J].Journal of Crystal Growth,1994,135:370.
[4]	D.Hichau;H.Kanda;SYamaoka .[J].Diamond and Related Materials,1999,8:1125.
[5]	W K Burton;N Cabrera;CFrank .[J].Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences,1951,243:299.
[6]	P.W.Pashley;G.A.Menter .[J].Nature,1957,179:752.
[7]	H Hashimoto;R Vyeda .[J].Acta Crystallographica,1957,10:143.
[8]	L W Yin;N W Wang;ZDZou .[J].Applied Physics A:Materials Science and Processing,2000,71:473.
[9]	W C Dash .[J].Journal of Applied Physics,1956,27:1193.
[10]	S Amelinckx .[J].Journal of Crystal Growth,1952,49:411.
[11]	B V Hoek;J P V Eerden .[J].Journal of Crystal Growth,1982,58:365.

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Dislocation Mechanism of Diamond Crystal Growth from Fe-Ni-C System at High Temperature-High Pressure

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