ORIENTATION AND RECORDING PERFORMANCE FOR Ba-FERRITE TAPES

抄録

  In preparing Ba-ferrite tapes with perpendicular, longitudinal or random orientation from the same magnetic paint, this paper investigates experimentally how the magnetic properties for the tapes, especially the orientation, the resultant switching field distribution(SFD), and a perpendicular-to-longitudinal coercivity ratio, affect their recording performance characteristics at high densities. The appropriate applications for Ba-ferrite tapes, depending on their orientation, are also discussed, referring to perpendicularly oriented tapes used for DAT magnetic contact duplication, and longitudinally oriented tapes for an 8mm VCR and a DAT.