Abstract: A magnetic metallic powder comprising iron or iron-cobalt as its fundamental component and, besides, molybdenum in an amount of 0.05 to 5% by weight of the fundamental component. The magnetic powder is produced by heat reduction of a molybdenum-doped iron oxide powder which may optionally contain cobalt. The presence of molybdenum suppresses agglomeration of the heated particles and produces an improvement on the coercive force of the metallic powder.

Abstract: A magnetic recording medium which comprises a support, and a magnetic recording layer formed on the support, the magnetic recording layer being comprised of a major proportion of a magnetic metal powder and minor proportions of a metal oxide powder, the metal oxide powder serving as a wear-resistant agent, an organic binder and ethylene stearyl bisamide serving as a lubricant.

Abstract: A magnetic metallic powder which is essentially of iron or its alloy with at least one other metal and features a good resistance to oxidation by air as well as a large value for saturation magnetization is obtained by the reduction of an oxide powder prepared or treated in a basic liquid phase environment the oxide powder ultimately to have a pH value not smaller than 6.0. A magnetic recording medium consisting of a nonmagnetic base and a thin magnetic layer comprising the metallic powder dispersed in a polymer binder serves for high density recording purposes and long retains its excellent physical properties.