低真空(10~10`3´Pa)雰囲気でのダイヤモンドと水晶の摩擦に伴う発光

書誌事項

タイトル別名
  • Luminescence during Friction between Diamond and Quartz in Low Vacuum (10-103 Pa)
  • 低真空(10~103 Pa)雰囲気でのダイヤモンドと水晶の摩擦に伴う発光
  • テイシンクウ 10 103 Pa フンイキ デ ノ ダイヤモンド ト スイショウ ノ マサツ ニ トモナウ ハッコウ

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抄録

We measured spectra of light-emissions during sliding friction between diamond and quartz in ambient gases of He, Ne, and Ar at 10-103 Pa. Two types of the light emission were observed; one has a band spectrum specific to each gas and the other has a continuous spectrum from 300 to 600 nm. The shape of the latter spectrum was almost the same for all the ambient gases while the pressure dependence of the intensity differed from gas to gas. The continuous spectrum is highly similar to that of photoluminescence caused by the oxygen vacancy in quartz. Microscopic spectroscopy revealed that the source of the continuous spectrum was on the friction track in the electric discharge region. Experimental results suggest that electrons or ions in the gas discharge stimulate the oxygen vacancy in quartz.

収録刊行物

  • 真空

    真空 48 (5), 346-349, 2005

    一般社団法人 日本真空学会

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