ブラウン管用内装塗布材料のガス脱離・吸着特性-黒鉛-ニ酸化チタン-水ガラス系を中心として- Gas Desorption and Adsorption Properties of Inner Coating Materials Used for Cathode Ray Tube-Graphite, Titanium Oxide and Water Glass Mixed Material-

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The gas desorption properties of carbon based materials coated on inner wall of a cathode ray tube were examined by using a technique of thermal desorption spectroscopy (TDS). This material consists of graphite powder, titanium oxide (TiO<SUB>2</SUB>) powder and water glass. The major outgassing species observed in the temperature range from RT to 500°C were CO<SUB>2</SUB> and H<SUB>2</SUB>O. The major outgassing source was graphite. In order to reduce the gas desorption in the cathode ray tube, the heat treatment with temperature higher than 400-500°C is necessary.<BR>Since the surface morphology of graphite-water glass material was dense, the degassing was insufficient by baking treatment in the atmosphere. On the other hand, the degassing was very easy for graphite-TiO<SUB>2</SUB>-water glass material, because of the porous structure.<BR>The gas adsorption experiments were also conducted. The adsorption amount of H<SUB>2</SUB>O or CO<SUB>2</SUB> increased as the composition ratio of graphite powder. The gas adsorption capacity largely increased by the addition of TiO<SUB>2</SUB> powder into the graphite-water glass material. The enhancement of adsorption capacity is due to that the surface structure became porous and also the effective surface area large by the addition of TiO<SUB>2</SUB> powder.

収録刊行物

  • 真空  

    真空 42(12), 1100-1105, 1999-12-20 

    The Vacuum Society of Japan

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各種コード

  • NII論文ID(NAID)
    10004568907
  • NII書誌ID(NCID)
    AN00119871
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    05598516
  • NDL 記事登録ID
    4951916
  • NDL 雑誌分類
    ZN15(科学技術--機械工学・工業--流体機械)
  • NDL 請求記号
    Z16-474
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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