Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 14701-014701.doi: 10.1088/1674-1056/22/1/014701

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

FEM simulations and experimental studies of the temperature field in a large diamond crystal growth cell

李战厂a, 贾晓鹏a, 黄国锋b, 胡美华a, 李勇a, 颜丙敏a, 马红安a   

  1. a State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
    b School of Physics and Electronic Engineering, Chifeng College, Chifeng 024000, China
  • 收稿日期:2012-06-01 修回日期:2012-06-15 出版日期:2012-12-01 发布日期:2012-12-01
  • 基金资助:
    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.

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   

  1. a State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
    b School of Physics and Electronic Engineering, Chifeng College, Chifeng 024000, China
  • Received:2012-06-01 Revised:2012-06-15 Online:2012-12-01 Published:2012-12-01
  • Contact: Ma Hong-An E-mail:maha@jlu.edu.cn
  • Supported by:
    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.

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摘要： 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.

关键词: temperature field, finite element method, single crystal growth diamond

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.

Key words: temperature field, finite element method, single crystal growth diamond

中图分类号:  (Finite element methods)

  • 47.11.Fg
81.10.Aj (Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation) 07.35.+k (High-pressure apparatus; shock tubes; diamond anvil cells)