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Journal of Materials Science

, Volume 34, Issue 19, pp 4761–4765 | Cite as

Process parameters for diamond synthesis assisted by DC plasma using a water-ethylene glycol solution

  • T. Suzuki
  • M. Tsukada
  • T. Yamazaki
  • S. Wada
  • T. Noma
Article

Abstract

Influence of the liquid composition, concentration of the potassium acetate, substrate-liquid distance and liquid layer thickness on the diamond formation were surveyed under a constant current for deposition during 1 h. Optimum deposition conditions were found to be 0.1 mol % potassium acetate, 8 mm substrate-liquid distance and 10–20 mm liquid layer thickness. Diamond forming liquid composition was then examined under a constant substrate temperature. It ranged from 60 to 99.9 mol % ethylene glycol; end compositions showed a poor yield. A constant substrate temperature was maintained under a constant current for temperatures lower than 900 °C. However, an important current reduction was required during the deposition to keep the substrate temperature higher than 1000 °C.

Keywords

Polymer Ethylene Glycol Substrate Temperature Deposition Condition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • T. Suzuki
    • 1
  • M. Tsukada
    • 1
  • T. Yamazaki
    • 1
  • S. Wada
    • 1
  • T. Noma
    • 1
  1. 1.Department of Applied Chemistry, Faculty of TechnologyTokyo University of Agriculture and TechnologyKoganei, TokyoJapan

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