| 摘要 |
PURPOSE:To obtain a titled recording medium having good water repellency, running characteristic, heat resistance, lubricity, etc. by providing a chemical adsorbing layer of metallic salts of perfluoroalkyl carboxylic acids and a coating layer of satd. hydrocarbon on the surface of a thin film of cobalt type ferromagnetic materials. CONSTITUTION:Metallic salts of perfluoroalkyl carboxylic acids are chemically adsorbed on the surface of a thin film of ferromagnetic materials consisting of cobalt or its alloys formed on a nonconductive substrate by a vapor deposition method, a sputtering method, a coating method, etc. Further, a coating layer consisting of hydrocarbons of >=18C hydrocarbons such as, for example, n-octadecane, n-nonadecane, n-dodecane, n-docosane, n-dotriacontane is provided thereon. |
