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Phase transition from amorphous carbon to diamond nanocrystalline induced by 40Ar+

Wang Zhen-Xia Zhu Zhi-Yuan Hu Jian-Gang Yong Zhen-Zhong Li Qin-Tao

Phase transition from amorphous carbon to diamond nanocrystalline induced by 40Ar+

Wang Zhen-Xia, Zhu Zhi-Yuan, Hu Jian-Gang, Yong Zhen-Zhong, Li Qin-Tao
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  • Abstract views:  3800
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Publishing process
  • Received Date:  09 January 2006
  • Accepted Date:  31 July 2006
  • Published Online:  05 June 2006

Phase transition from amorphous carbon to diamond nanocrystalline induced by 40Ar+

  • 1. (1)中国科学院上海应用物理研究所,上海 201800; (2)中国科学院上海应用物理研究所,上海 201800;中国科学院研究生院,北京 100049

Abstract: Large-scale diamond nanocrystals of different sizes were synthesized by 60 keV 40Ar+ irradiation on amorphous carbon. Investigated by high-resolution transmission electron microscopy, energy diffraction X-ray spectrum, electron diffraction and Raman spectrum, the diamond crystallites embeded in graphitic film have a high nucleation density (about 1013/cm2) and can grow to large sizes even of the micrometer order. The mechanism of phase transition is discussed preliminarily.

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