| 摘要 |
PURPOSE:To improve corrosion resistance and durability and to reduce coefficient of friction against a head by laminating specified five-layered coating film on a substrate. CONSTITUTION:The medium consists of the substrate and the five-layered coating film laminated thereon. The five layers are metal magnetic medium, an oxide film of the element which constitutes this magnetic medium, a film of at least one material selected from carbides, oxides, nitrides and carbon, a condensation polymerization film of organic metal compound the molecule of which as a hydrolytic group in one end and at least one kind of functional group among amino groups and imino groups in the other end, and at least one metal salt of fatty acid with Li, Na, K, Cs or Mg. By this method, not only corrosion resistance but durability of the medium is improved because the metal magnetic medium is not affected by heat or humidity. The medium can be minimized and a coefficient of friction against a head is reduced. Reliability of a magnetic recording device using this medium is also improved. |
