Hexagonal plate shaped ferrite powder, manufacturing method thereof, and resin compound and molded product using the ferrite powder
AssigneePowdertech Co., Ltd.
InventorsKoji AGA, Tetsuya IGARASHI
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Abstract
Objects are to provide a ferrite powder having a residual magnetization and a coercive force larger than those of spherical hard ferrite particle, and magnetic permeability μ″ is maximum in a specific frequency range, a manufacturing method thereof, a resin compound containing the ferrite powder, and a molded product made from the resin compound. To achieve the objects, a hexagonal plate shaped ferrite powder containing 7.8 to 9 wt % of Sr, 61 to 65 wt % of Fe, and 0.1 to 0.65 wt % of Mg, a manufacturing method thereof, a resin compound containing the hexagonal plate shaped ferrite powder, and a molded product made from the resin compound are employed.
Claims9
A hexagonal plate shaped ferrite powder characterized in containing 7.8 to 9 wt % of Sr, 61 to 65 wt % of Fe, and 0.1 to 0.65 wt % of Mg.
A method of manufacturing a hexagonal plate shaped ferrite powder characterized in dry mixing Fe2O3, SrCO3 and MgCl2 as raw materials, and firing the mixture as it is.
Dependencies are inferred from the claim text.