| 摘要 |
PURPOSE:To improve the high frequency magnetic characteristics and the time stability of the titled magnetic core as well as to reduce its iron loss by a method wherein a Co radical amorphous magnetic alloy thin band, partially containing a crystal phase and having specific coercive force, is wound around. CONSTITUTION:When an amorphous ribbon is formed using a liquid quick- cooling method or a heat treatment is performed, a Co amorphous magnetic alloy thin band partially containing a crystal phase and having the coercive force of 0.20 (e) or below is wound around. The Co radical amorphous magnetic alloy indicated by the formula (Co1-x-y-zFexMnyNiz)100-a-b-cMaSib which satisfies the relation of 0<=x<=0.1, 0.001<=y<=0.2, 0<=z<=0.13, 0<=a<=6, 8<=b<=18, 7<=c<=18, and 18<=b+c<=30 is considered suitable as the material of the wound magnetic core. As a result, the wound magnetic core having excellent high frequency magnetic characteristics, a low iron loss and the excellent rime stability can be obtained. |
