| 摘要 |
PURPOSE:To obtain a high saturation magnetic flux density, high magnetic permeability, high mechanical characteristics, and thermal stability by forming cores by using a specifically composed soft magnetic alloy powder. CONSTITUTION:The magnetic head 1 is constituted by installing the cores D wound with coils 2 into a holder 28. The cores D are formed by compacting the soft magnetically powder A which is made of the Fe system consisting of the compsn. expressed by formula (Fe1-aCoa)bBxLyT'z and has the high saturation magnetic flux density. In this formula, L is one or >=2 kinds of the elements selected from a group consisting of Ti, Nb and Ta; T' is one or >=2 kinds of the elements selected from a group consisting of Cu, Ag, Au, Ni, Pd, Pt; a<=0.05, b<=92 atomic %, x=6.5 to 18 atomic %, y=4 to 10 atomic %, z=<=4.5 atomic %. The alloy powder of the compsn. expressed by formula FebBxLyT'z is also usable for the cores D. |
