Surface patterning of synthetic diamond crystallites using nickel powder

Junsha Wang, Long Wan, Jing Chen, Jiwang Yan

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Nickel powder (Ni) was used as catalyst to form micropatterns on diamond crystallites surface without flowing hydrogen gas. Anisotropic etch patterns on {100} and {111} planes of diamond and the interface of diamond and nickel were analyzed, and the pattern area and etch depth formed at different temperatures were measured quantitatively. Results show that the etch patterns on {100} planes were formed as reversed pyramids, while those on {111} planes were hexagons. Compared to {111} planes, {100} planes had better affinity for nickel. And the formation of cubic nanoparticles on the bottom of the patterns might have been caused by the melting and crystallization of eutectic. An increase in temperature promoted the surface patterning process. At the same temperature, {100} planes were etched more significantly than {111} planes in terms of larger pattern area and deeper etch depth. At 950 °C, the average percentages of pattern area on {100} and {111} planes were 21% and 9%, and the corresponding etch depths were 5.0 μm and 3.0 μm, respectively. Moreover, it was demonstrated that graphitization was the dominant mechanism of the diamond surface patterning process.

本文言語English
ページ(範囲)206-212
ページ数7
ジャーナルDiamond and Related Materials
66
DOI
出版ステータスPublished - 2016 6 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Materials Chemistry
  • Electrical and Electronic Engineering

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