| 摘要 |
PURPOSE:To make it possible to obtain soft magnetic characteristics by a method wherein one or more kinds ot water-soluble salt are mixed into a specific raw oxide as a flux, a heat treatment is conducted thereon at 1000-1400 deg.C, and the flux is removed by dissolving it into water after it has been cooled. CONSTITUTION:One or more kinds of water-soluble salt, as a flux, are mixed into the raw oxide which is formed in such a manner that at least a kind of the magnetic oxide having the composition of (AO)a(Me1-xCOxO)b(Fe2-yDyO3)c will be grown, and the mixture is heat-treated at 1000-1400 deg.C. After the mixture has been cooled down, the flux is removed by dissolving it into water, and the magnetically soft powder consisting of tabular grains is obtained. The A in the above-mentioned composition contains at least a kind of the alkaline earth metal such as Ba, Sr and the like, Me contains at least a kind of bivalent Fe, Ni, Zn, Mn, Cu, Cd, Mg and (Fe<3+>+Li<1+>)/2, and D contains at least a kind of trivalent Al, Mn, Cr, Ga and (Co<2+>+Ti<4+>)/2. As a result, soft magnetic characteristics can be improved. |
