TY - JOUR AU - Polishchuk, A. AB - APPARATUS FOR THE MANUFACTURE AN VERY FINE FERROMAGNETIC POWDERS OF UDC 621,762.2 G. K. Chernov, V. K. Shikin, V. N. Vasenin, and A. I. Polishchuk Magnetic materials based on ultrafine iron and iron-alloy powders, particularly those exhibiting shape anisotropy, possess excellent magnetic properties. They enable considerable savings to be made in the consumption of materials such as cobalt, nickel, and copper, which are both expensive and in short supply [1, 2]. Among the various methods suitable for the production of very fine ferromagnetic powders [2, 3], the most promising appears to be that developed by Natanson [4]. In this method, ferromagnetic powder mate- rials are produced electrolytically in a two-layer bath on a rotating cathode. The lower layer is an elec- trolyte solutionandtheupper, asolution of oleic acid or some other surface-active agent in a hydrocarbon medium. It has been established by experiment that the size and structure of cathodic deposit particles manu- factured in this way depend upon a large number of factors, among which the most important are the elec- trolyte and surfactant concentrations, the solution pH, the nature and condition of the cathode, the current density, the speed of rotation of the cathode, the electrolyte temperature, and TI - An apparatus for the manufacture of very fine ferromagnetic powders JO - Powder Metallurgy and Metal Ceramics DO - 10.1007/BF00793990 DA - 2004-11-27 UR - https://www.deepdyve.com/lp/springer-journals/an-apparatus-for-the-manufacture-of-very-fine-ferromagnetic-powders-Oj0rRy4trR SP - 767 EP - 769 VL - 12 IS - 9 DP - DeepDyve ER -