Synthesis method for ultrananocrystalline diamond in powder employing a coaxial arc plasma gun

Hiroshi Naragino, Aki Tominaga, Kenji Hanada, Tsuyoshi Yoshitake

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    A new method that enables us to synthesize ultrananocrystalline diamond (UNCD) in powder is proposed. Highly energetic carbon species ejected from a graphite cathode of a coaxial arc plasma gun were provided on a quartz plate at a high density by repeated arc discharge in a compact vacuum chamber, and resultant films automatically peeled from the plate were aggregated and powdered. The grain size was easily controlled from 2.4 to 15.0nm by changing the arc discharge energy. It was experimentally demonstrated that the proposed method is a new and promising method that enables us to synthesize UNCD in powder easily and controllably.

    Original languageEnglish
    Article number075101
    JournalApplied Physics Express
    Volume8
    Issue number7
    DOIs
    Publication statusPublished - Jul 1 2015

    All Science Journal Classification (ASJC) codes

    • Engineering(all)
    • Physics and Astronomy(all)

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