A method of preparation of a ferromagnetic ceramic material. (Machine-translation by Google Translate, not legally binding)

摘要

A method of preparing a ferromagnetic ceramic material having a low initial permeability temperature coefficient, characterized in that in a known method of preparing a manganese and zinc ferrite by compression of a mixture of oxides and thermal treatment of the compressed mixture a such molecular proportion of ferric oxide is replaced by aluminum oxide that the coefficient of temperature of the initial permeability in the zone of temperatures between 0ºC and 80º c, at least, is reduced by one half, at least, of the value for manganese and zinc ferrite. (Machine-translation by Google Translate, not legally binding)