Glass-forming ability and soft magnetic properties of (Co0.6Fe0.3Ni0.1)67B22+xSi6−xNb5 bulk glassy alloys
Glass-forming ability and soft magnetic properties of (Co0.6Fe0.3Ni0.1)67B22+xSi6−xNb5 bulk glassy alloys
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DOI：
10.1016/j.jallcom.2011.01.045
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发表时间：
2011-06
影响因子：
6.2
通讯作者：
Yaqiang Dong;Q. Man;Huaijun Sun;B. Shen;S. Pang;Tao Zhang;A. Makino;A. Inoue
中科院分区：
文献类型：
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作者：
Yaqiang Dong;Q. Man;Huaijun Sun;B. Shen;S. Pang;Tao Zhang;A. Makino;A. Inoue
研究了(Co0.6Fe0.3Ni0.1)67B22+xSi6−xNb5(x=0~1.5)块体非晶合金的非晶形成能力和软磁性能。差热分析结果表明，(Co0.6Fe0.3Ni0.1)67B22+xSi6−xNb5块体非晶合金具有约60K的宽过冷液相区(ΔTx)，高还原玻璃化转变温度(Tg/TL)在0.628~0.649之间。采用铜模铸造法可以制备出直径4.5 mm的块体非晶合金。Co基块体非晶合金除了具有较高的GFA外，还具有良好的软磁性能，饱和磁化强度为0.58-0.61T，较低的矫顽力为0.83-1.46A/m，在1 kHz1a/m磁场下的磁导率为(1.79-2.2)×104，作为一种新型的结构和功能材料具有广阔的应用前景。
The glass-forming ability (GFA) and soft-magnetic properties of (Co0.6Fe0.3Ni0.1)67B22+xSi6−xNb5(x=0–1.5) bulk glassy alloys was investigated. The DSC curves show that the (Co0.6Fe0.3Ni0.1)67B22+xSi6−xNb5bulk glassy alloys have a wide supercooled liquid region (ΔTx) of about 60K, and high reduced glass transition temperature (Tg/Tl) lies in the range from 0.628 to 0.649. By copper mold casting method, the bulk glassy alloys with diameters up to 4.5mm can be formed. In addition to high GFA, the Co-based bulk glassy alloys also exhibit good soft-magnetic properties, i.e., saturation magnetization of 0.58–0.61T, low coercive force of 0.83–1.46A/m, and high permeability of (1.79–2.2)×104at 1kHz under a field of 1A/m. These Co-based bulk glassy alloys are promising for future applications as a new structural and functional material.