SINGLE-CRYSTAL FERRITE FINE POWDER

摘要

A FERRITE FINE POWDER HAVING A MEAN PARTICLE SIZE OF 0.1 TO 30 µm AND CONSISTING OF SPHERICAL SINGLE-CRYSTAL PARTICLES. THE FERRITE FINE POWDER HAS SUPERIOR PHYSICAL PROPERTIES AND EXCELLENT MAGNECTIC PROPERTIES DESIRABLE FOR THE USE AS A RAW METERIAL FOR A DUST CORE OF COILS, TRANSFORMERS, ETC. THE POWDER IS PREPARED BY FORMING A SOLUTION OR SUSPENSION CONTAINING A COMPOUND OR COMPOUNDS OF AT LEAST ONE OF THE MATELS COMPOSING FERRITE INTO FINE DROPLETS, AND THERMALLY DECOMPOSING THE DROPLETS AT ELEVATED TEMPERATURES.