| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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FEM simulations and experimental studies of the temperature field in a large diamond crystal growth cell |
| Li Zhan-Chang (李战厂)a, Jia Xiao-Peng (贾晓鹏)a, Huang Guo-Feng (黄国锋)b, Hu Mei-Hua (胡美华)a, Li Yong (李勇)a, Yan Bing-Min (颜丙敏)a, Ma Hong-An (马红安)a |
a State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
b School of Physics and Electronic Engineering, Chifeng College, Chifeng 024000, China |
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Abstract We investigate the temperature fields varying in growth region of a diamond crystal in a sealed cell during the whole process of crystal growth by the temperature gradient method (TGM) at high pressure and high temperature (HPHT). We employ both the finite element method (FEM) and in situ experiments. Simulation results show that the temperature in the center area of the growth cell continues to decrease during the process of large diamond crystal growth. These results are in good agreement with our experimental data, which demonstrates that the finite element model can successfully predict the temperature field variations in the growth cell. The FEM simulation will be useful to grow larger high-quality diamond crystals by TGM. Furthermore, this method will be helpful in designing better cells and improving the growth process of gem-quality diamond crystal.
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Received: 01 June 2012
Revised: 15 June 2012
Accepted manuscript online:
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PACS:
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47.11.Fg
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(Finite element methods)
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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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07.35.+k
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(High-pressure apparatus; shock tubes; diamond anvil cells)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51071074, 51172089, and 51171070) and the Program for New Century Excellent Talents in University of Ministry of Education of China. |
Corresponding Authors:
Ma Hong-An
E-mail: maha@jlu.edu.cn
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Cite this article:
Li Zhan-Chang (李战厂), Jia Xiao-Peng (贾晓鹏), Huang Guo-Feng (黄国锋), Hu Mei-Hua (胡美华), Li Yong (李勇), Yan Bing-Min (颜丙敏), Ma Hong-An (马红安) FEM simulations and experimental studies of the temperature field in a large diamond crystal growth cell 2013 Chin. Phys. B 22 014701
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