| 摘要 |
PURPOSE:To obtain a magnetic recording medium for high-density recording provided with practicable durability by coating a magnetic medium and non-magnetic metal in this order on a substrate, coating the surface of the non-magnetic metal with an oxide and coating a bindable lubricating agent thereon. CONSTITUTION:The iron oxide such as Fe3O3 or gamma-Fe2O3 or metal or alloy such as Co-Ni is coated as a magnetic medium 2 on the substrate 1. Re or the like is coated as the non-magnetic metal 3 on the medium 2 and is then calcined in an oxidative atmosphere contg. oxygen or ozone to form the oxide coating 4 consisting of the non-magnetic metal on the surface. The lubricating agent 5 to be coated thereon is required to be bindable as the oxide film 4 of the non-magnetic metal. Silane which binds to said film by reacting securely therewith is most effective as such lubricating agent component. There are some lubricating agent components which bind to the film 4 by adsorbing thereto according to the polarity of -O-. |
