Electronic-structure origin of the glass-forming ability and magnetic properties in Fe-RE-B-Nb bulk metallic glasses
Electronic-structure origin of the glass-forming ability and magnetic properties in Fe-RE-B-Nb bulk metallic glasses
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Fe-RE-B-Nb块体金属玻璃玻璃形成能力和磁性能的电子结构起源
DOI：
10.1016/j.jallcom.2014.07.222
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发表时间：
2014-12
影响因子：
6.2
通讯作者：
Wang, X. M.
中科院分区：
文献类型：
--
作者：
Yang, W. M.;Man, Q. K.;Chang, C. T.;Wang, X. M.
(Fe0.71RE0.05B0.24)96Nb4(RE=Gd，Tb，Ho，Er，Tm)块体金属玻璃具有良好的非晶形成能力，临界直径在3.5~6.5 mm之间，抗压断裂强度大于4300 Mpa。此外，它们还具有良好的软磁性能，饱和磁通密度为0.71-0.87T，矫顽力为1.23-39.76A/m，有效磁导率为1500-12740。用X射线光电子能谱从电子结构的角度阐明了高性能GFA的来源。研究发现，Tm掺杂的合金具有独特的电子结构，包括最深的芯能级结合能、最多的RE-B键和最小的费米能级附近的态密度，使其成为最好的玻璃成形剂。磁性能的不同趋势主要归因于稀土元素磁各向异性和磁矩的不同。
(Fe0.71RE0.05B0.24)96Nb4(RE = Gd, Tb, Ho, Er, Tm) bulk metallic glasses (BMGs) were found exhibiting excellent glass-forming ability (GFA) with critical diameters ranging from 3.5 to 6.5 mm, and high compressive fracture strength larger than 4300 MPa. Moreover, they displayed good soft-magnetic properties with saturation magnetic flux density of 0.71–0.87 T, coercive force of 1.23–39.76 A/m and effective permeability of 1500–12,740 at 1 kHz. X-ray photoelectron spectroscopy was performed to clarify the origin of the excellent GFA from the viewpoint of electronic structure. It was found that the Tm doped alloy displayed unique electronic structure including the deepest core-level binding energy, the most numerous RE–B bonds and the minimum density of states near the Fermi level, making this alloy the best glass former. The various trends noticed in the magnetic properties were ascribed mainly to the differences in the magnetic anisotropy and magnetic moment of RE elements.
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影响因子：
2.7
作者：
H. Kato;N. Kurita;Y. Ando;T. Miyazaki;M. Motokawa
通讯作者：
H. Kato;N. Kurita;Y. Ando;T. Miyazaki;M. Motokawa
多元金属玻璃玻璃形成能力的近自由电子模型
影响因子：
3.5
作者：
Dun, Chaochao;Li, Jiawei;Zhao, Yucheng;Shen, Baolong
通讯作者：
Shen, Baolong
影响因子：
3.2
作者：
Wei Zhang;F. Jia;Xingguo Zhang;G. Xie;H. Kimura;A. Inoue
通讯作者：
Wei Zhang;F. Jia;Xingguo Zhang;G. Xie;H. Kimura;A. Inoue
影响因子：
1.6
作者：
Jiawei Li;H. Men;B. Shen
通讯作者：
Jiawei Li;H. Men;B. Shen
具有高玻璃形成能力的 Fe-Dy-B-Nb 大块金属玻璃的热稳定性、磁性能和机械性能
影响因子：
4.4
作者：
Man, Qikui;Zhao, Yuanyun;Zhang, Zhidong;Shen, Baolong
通讯作者：
Shen, Baolong