Influence of Modes Shredding of Source Components by Processes to Synthesis and Activity of Powder Sintering Hexaferrite

摘要

The influence of the modes of wet grinding of the original ferrite-forming components on their activityudand the temperature of the synthesis powders of hexaferrites. It is shown that grinding of the initial componentsudin the acidic environment can reduce the synthesis temperature of hexaferrites. The increased activityudof the powders during milling in acidic medium due to the formation on the surface of particles of gellikeudlayers of hydroxides of barium or strontium. The activity formed gelled layers to a significant extentudcan be controlled by introducing surfactants in the wet grinding.