• DocumentCode
    1027777
  • Title

    Improvement in durability of CoCr film with carbon protective layer

  • Author

    Nagao, M. ; Sano, K. ; Kojima, M. ; Iwasaki, H. ; Nahara, A. ; Kitamoto, T.

  • Author_Institution
    Fuji Photo Film Co., Ltd., Kanagawa, Japan
  • Volume
    23
  • Issue
    5
  • fYear
    1987
  • fDate
    9/1/1987 12:00:00 AM
  • Firstpage
    2395
  • Lastpage
    2397
  • Abstract
    Durability of CoCr film on a conventional 3.5 inch FDD was studied. The durability is improved by a graphite-like amorphous carbon protective layer (0.02 μm) prepared by DC magnetron sputtering. Ar plasma treatment prior to the carbon layer sputtering further improves the durability, up to 107passes. The improved durability of the Ar plasma treatment is mainly due to the enhanced adhesion between CoCr / carbon interface by eliminating the oxidized layer on the CoCr surface. Corrosion resistance was also tested under two environments (1) at 25°C 75 %RH containing 1ppm SO2for 3 days (2) at 60°C 90%RH for 3 days after NaCl mist spray. The carbon layer exihibits greater resistance even for low Cr content.
  • Keywords
    Corrosion; Magnetic recording; Plasma applications, materials processing; Adhesives; Amorphous magnetic materials; Amorphous materials; Argon; Corrosion; Plasmas; Protection; Sputtering; Surface resistance; Surface treatment;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1987.1065341
  • Filename
    1065341
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1027777