| 摘要 |
PURPOSE:To provide a low loss Fe-base amorphous alloy having the loss at a high frequency lower than the loss of the conventional Fe-base amorphous alloy and having excellent magnetic permeability by consisting the same of an Fe-base amorphous alloy having the specific general formula and contg. Nb and/or Mo. CONSTITUTION:This low loss Fe-base amorphous alloy has the compsn. expressed by the general formula. The embodiment of the amorphous alloy is exemplified by, for example, (Fe0.987Nb0.13)76.5Cu2Si13.5B9. This amorphous alloy can be cast by a single roll method, double roll method and other known liquid quick cooling methods. The thickness of the amorphous ribbon produced by the single roll method, etc. is usually about 8-100mum, and the ribbon having <=25mum thickness is adequate as the magnetic core material to be used at the high frequency. Part of Nb or Mo may be substd. with 1 or >=2 kinds among Ti, Zr, Hf, V, Ta, Cr, W, Mn, and Ni as necessary. |
