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Growth Characteristics of Synthetic Diamond in Fe-Si-C System

ZHENG You jin1,2, MA Hong an1, ZHOU Lin1, QIN Jie ming1, JIA Xiao peng1   

  1. 1. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; 2. Department of Physics, Mudanjiang Teachers College, Mudanjiang 157000, Heilongjiang Province, China
  • Received:2007-01-28 Revised:1900-01-01 Online:2008-01-26 Published:2008-01-26
  • Contact: JIA Xiao peng

Abstract: By high pressure and high temperature (HPHT) method, the study on introducing Si into diamond synthesis was carried out. Experimental results indicate that owing to the introduction of Si, the color of diamonds from Fe-Si-C system appears to be shallower than that from Fe-C system. And within the same synthetic time, the crystal size of diamonds from Fe-Si-C system is smaller than that from Fe-C system. From X-ray data, we can find that there are two kinds of new compounds, FeSi and Fe3C, in the Fe-Si-C system.

Key words: silicon, high pressure and high temperature, diamond, crystal size

CLC Number: 

  • TQ164