FLAT METAL SOFT MAGNETIC POWDER AND MAGNETIC COMPOSITE MATERIAL COMPRISING THE SOFT MAGNETIC POWDER

摘要

A flat metal soft magnetic powder which has a chemical composition that Ni: 60 to 90 %, one or more of Nb, V and Ta: 0.05 to 20 % in total (provided that 0.05 to 19.95 % when Mo is contained), optionally Mo: 0.05 to 10 %, optionally one or two of Al and Mn: 0.01 to 1 % in total, and the balance: Fe, has a size and form wherein an average particle diameter is 30 to 150 μm and an aspect ratio is 5 to 500, and has a flat surface, wherein it exhibits a peak intensity ratio I220/I111 in the range of 0.1 to 10, in which I220 and I111 represent the heights of the peaks having plane indices (220) and (111), respectively, in an X-ray diffraction pattern obtained by the measurement in such a state that the plane including the directions of injection and diffraction of the X-ray is perpendicular to the flat plane of the above flat metal soft magnetic powder and the angle formed by the injection direction and the flat plane is equal to that formed by the diffraction direction and the flat plane.