STRONTIUM-FERRITE MAGNET IN EXCELLENT MAGNETIC PROPERTIES

摘要

PURPOSE:To augment the residual flux density and the coercive force by a method wherein the title strontium.ferrite is composed of a sintered body containing CuO, SiO2, Sb2O3 in respectively specified contents as well as the remaining content of SrO.nFe2O3 where n represents 5.8-6.0. CONSTITUTION:The title strontium.ferrite magnet can be manufactured by sintering it so that it may be composed of 0.3-0.6wt.% of CaO, SiO2 and 0.05-0.15wt.% of Sb2O3 as well as the remaining substantial wt.% of SrO.nFe2O3 where n represents 5.8-6.0. Through these procedures, the strontium.ferrite magnet especially for electronic range in combination of high Bv with high Hc can be manufactured.