LOW CORE LOSSES AND SOFT MAGNETIC PROPERTIES OF FE-AL-GA-P-C-B-SI GLASSY ALLOY RIBBONS WITH LARGE THICKNESSES
LOW CORE LOSSES AND SOFT MAGNETIC PROPERTIES OF FE-AL-GA-P-C-B-SI GLASSY ALLOY RIBBONS WITH LARGE THICKNESSES
复制标题
大厚度FE-AL-GA-P-C-B-SI玻合金带的低磁芯损耗和软磁性能
DOI：
10.1063/1.369803
复制
发表时间：
1999
影响因子：
3.2
通讯作者：
A. Inoue
中科院分区：
文献类型：
--
作者：
T. Mizushima;A. Makino;S. Yoshida;A. Inoue
研究了采用快淬技术制备的Fe_（77）Al_（2.14）Ga_（0.86）P_（8.4）C_5B_4Si_（2.6）非晶合金的结构、软磁性能和铁损。玻璃形成的最大厚度（tmax）约为220 μm，过冷液相区的热稳定性（ΔTx）约为35 K。这种玻璃态合金的饱和磁化强度（σs）约为1.5T。30 μm厚度的有效磁导率在1 kHz时高达12000，并且在tmax厚度下保持在4400以上的高值。矫顽力保持在低水平，低于3A/m直到tmax。在f=50 Hz和Bm=1.0 T时，该玻璃态合金在30 ~ 220 μm厚度范围内的铁损值为0.1-0.3 W/kg。 另一方面，Fe_（78）Si_（9 B_（13））非晶合金仅在室温下表现出与玻璃态合金几乎相同的低铁损。
The structure, soft magnetic properties, and core losses were investigated for a Fe77Al2.14Ga0.86P8.4C5B4Si2.6 glassy alloy with a sheet thickness in a wide range from 30 to 240 μm prepared by the melt-spinning technique. The maximum thickness (tmax) for glass formation and the thermal stability (ΔTx) of the supercooled liquid region defined by the difference between the crystallization temperature (Tx) and the glass transition temperature (Tg) are about 220 μm and 35 K, respectively. The saturation magnetization (σs) of this glassy alloy is about 1.5 T. The effective permeability at 1 kHz is as high as 12 000 in a thickness of 30 μm and it maintains high values above 4400 up to a thickness of tmax. The coercive force is kept at a low level, under 3 A/m up to tmax. This glassy alloy also shows low core loss values of 0.1–0.3 W/kg at f=50 Hz and Bm=1.0 T in the thickness from 30 to 220 μm. On the other hand, a Fe78Si9B13 amorphous alloy shows almost the same low core losses as that of the glassy alloy only...