| 摘要 |
PURPOSE:To improve mechanical characteristics, such as travelling property, durability, etc. while keeping excellent magnetic characteristics by evaporating a metal, the principal ingredient thereof is iron Fe, in vacuum under comparatively low specific pressure and forming a ferromagnetic metallic thin-film with Fe3N phase onto a nonmagnetic substrate. CONSTITUTION:Fe is evaporated obliquely onto the nonmagnetic substrate consisting of a polyethylene terephthalate film at an angle of incidence of 60 deg. to the surface to be evaporated of the nonmagnetic substrate at the degree of vacuum of 10<-4>Torr, and the magnetic metallic thin-film is formed, thus obtaining the magnetic recording medium. With the magnetic recording medium, it has not only mechanical characteristics but also magnetically excellent ones as compared to a conventional metallic thin-film type magnetic recording media, and not only labor is the same as one through a conventional evaporation method but also the high degree of vacuum is not required in its manufacture. Accordingly, workability can be improved, and the device can be simplified. |
