| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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HPHT Synthesis of Different Shape Coarse-Grain Diamond Single Crystals |
| ZHOU Sheng-Guo1, ZANG Chuan-Yi1, MA Hong-An2, HU Qiang1, LI Xiao-Lei1, LI Shang-Sheng2, ZHANG He-Min1, JIA Xiao-Peng1,2 |
| 1Institute of Material Science and Engineering Henan Polytechnic University, Jiaozuo 4540002National Laboratory of Super Hard Materials, Jilin University,Changchun 130012 |
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| Cite this article: |
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ZHOU Sheng-Guo, ZANG Chuan-Yi, MA Hong-An et al 2009 Chin. Phys. Lett. 26 048102 |
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Abstract Synthesis of coarse-grain diamond crystals is studied in a China-type SPD6×1670T cubic high-pressure apparatus with high exact control system. To
synthesize high quality coarse-grain diamond crystals, advanced indirect heat assembly, powder catalyst technology and optimized synthesis craft are used. At last, three kinds of coarse-grain diamond (about 0.85mm) single crystals with hexahedron, hex-octahedron and octahedron are synthesized successfully under HPHT (about 5.4GPa, 1300-1450°). The growth characters
of different shape crystals are discussed. The results and techniques might be useful for the production of coarse-grain diamonds.
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| Keywords:
81.05.Uw
81.10.Aj
81.10.-h
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Received: 13 October 2008
Published: 25 March 2009
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| PACS: |
81.05.Uw
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81.10.Aj
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(Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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81.10.-h
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(Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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