アルミニウムの有機アルカリ性浴陽極酸化皮膜に及ぼす浴温度および浴電圧の影響 Bath Temperature and Voltage Influence on Anodized Films on Aluminum in Organic Alkaline Baths

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Aluminum was anodized in propylenediamine baths and choline baths containing ammonium fluoride, ammonium tartrate, and ammonium carbonate or ammonium tetraborate, at a bath temperatures of 10°C, 20°C, and 30°C, and at constant bath voltages of 30V, 50V, and 80V. Anodized films thus formed were compared by hardness, alkaline dropping test, dyeing affinity, and pore diameter.<br>Marten's scratch hardness test showed that the hardest films was obtained in low-temperature baths. Films formed in a high-temperature and high-voltage bath were highly corrosion-resistant. In dyeing affinity, films formed in propylenediamine baths and choline baths containing fluoride and tartrate at 20°C and 30V were superior to films formed in the same baths at 30°C and 80V. SEM of the film surface and cross-sections showed that the film formed in propylenediamine baths containing fluoride, tartrate, and carbonate had larger pores (about 150nm) than these formed in bath containing fluoride and tartrate (about 110nm) at 30°C and 80V. Films formed in choline baths containing fluoride, tartrate, and tetraborate had larger pores (about 90nm) than those formed in baths containing fluoride and tartrate (about 60nm). Large pores were assumed formed by the dissolution of pore walls at higher temperatures and voltages.

収録刊行物

  • 表面技術 = The Journal of the Surface Finishing Society of Japan  

    表面技術 = The Journal of the Surface Finishing Society of Japan 49(6), 649-654, 1998-06-01 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002109668
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    4502335
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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