PROCESS FOR PRODUCING NICKEL-ZINC SPINEL FERRITES OF HIGH PERMEABILITY AND RESISTIVITY

摘要

the invention refers to a process to achieve feritelor spinelice stoichiometric nickel zinc or easy nestoichiometrice with permeability and high resistivity.who uses in electronic and electrotechnical equipment. the girl that is characteristic of process of raw material mixture consisting of...50,5 19.3 mol% fe2o3; 15.5.18.5 mol nio and 30.5...34,5 mol zno is omogenizeaza for 16 h, calcineaza at 900.1100 degree c, it is grinded until getting a specific surfaces of munimum 3 m2 / g and, after drying by atomisation, making sintering parts trimmed to 1200.1350 degree c for 5 h, in the atmosphere of air, followed by slow cooling in the air.