MAGNETIC POWDER MATERIAL, LOW-LOSS COMPOSITE MAGNETIC MATERIAL CONTAINING MAGNETIC POWDER MATERIAL, AND MAGNETIC ELEMENT CONTAINING LOW-LOSS COMPOSITE MAGNETIC MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a material which can be used for low pressure molding, and which has a low core loss while taking advantage of the characteristic of amorphous powder that is the high coercive force.;SOLUTION: There is provided a composite magnetic material comprising: a magnetic powder material containing, based on the weight of the magnetic powder material, 45 to 80 wt.% of amorphous powder and 55 to 20 wt.% of crystalline powder; and a binder. Here, the magnetic powder material contains, based on the weight thereof, 4.605 to 6.60 mass% of Si, 2.64 to 3.80 mass% of Cr, 0.225 to 0.806 mass% of C, 0.018 to 0.432 mass% of Mn, 0.99 to 2.24 mass% of B, 0.0248 mass% or less of P, 0.0165 mass% or less of S, 0.0165 mass% or less of Co, and Fe and inevitable impurities as the remainder.;COPYRIGHT: (C)2012,JPO&INPIT