Plasma generation induced by triboelectrification

Yukihiro Kusano, Shailendra Vikram Singh, Poul Michelsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

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    A gas discharge plasma can be induced by triboelectrification around a sliding contact. The detailed physical mechanism of triboelectrification is unknown, but an empirical classification scheme can be referred to in practice. It is reported that intense ultra-violet emission from a plasma is observed adjacent to the sliding contact, of which the location has a gap ranging from approximately 1 μm to 11 μm. When the gap is short enough, a theory predicts that the breakdown voltage can monotonically decrease with a decrease in the gap. However, when the gap is comparable to electron’s mean free path, the probability of collisions in the gap is highly suppressed, and an optimal gap may exist for the discharge ignition.
    Original languageEnglish
    Title of host publicationProceedings (CD-ROM)
    Publication date2009
    Publication statusPublished - 2009
    EventXXIX International Conference on Phenomena in Ionized Gases - Cancún, Mexico
    Duration: 12 Jul 200917 Jul 2009
    Conference number: 29


    ConferenceXXIX International Conference on Phenomena in Ionized Gases


    • Plasma processing
    • Fusion energy


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