Structure alterations in Al-Y-based metallic glasses with La and Ni addition | |
Shi, XM; Wang, XD; Yu, Q; Cao, QP; Zhang, DX; Zhang, J; Hu, TD; Lai, LH; Xie, HL; Xiao, TQ | |
刊名 | JOURNAL OF APPLIED PHYSICS |
2016 | |
卷号 | 119期号:11页码:— |
关键词 | AMORPHOUS-ALLOYS ATOMIC PACKING CRYSTALLIZATION TEMPERATURE ALUMINUM DYNAMICS SYSTEMS CO |
ISSN号 | 0021-8979 |
通讯作者 | Wang, XD ; Jiang, JZ (reprint author), Zhejiang Univ, Int Ctr New Struct Mat, Lab New Struct Mat, Hangzhou 310027, Zhejiang, Peoples R China. |
英文摘要 | The atomic structures of Al89Y11, Al90Y6.5La3.5, and Al82.8Y6.07Ni8La3.13 metallic glasses have been studied by using high energy X-ray diffraction, X-ray absorption fine structure combined with the ab initio molecular dynamics and reverse Monte Carlo simulations. It is demonstrated that the partial replacement of Y atoms by La has limited improvement of the glass forming ability (GFA), although La atoms reduce the ordering around Y atoms and also the fractions of icosahedron-like polyhedra centered by Al atoms. In contrast, Ni atoms can significantly improve the GFA, which are inclined to locate in the shell of polyhedra centered by Al, Y, and La atoms, mainly forming Ni-centered icosahedron-like polyhedra to enhance the spatial connectivity between clusters and suppress the crystallization. (C) 2016 AIP Publishing LLC. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000373383300034 |
内容类型 | 期刊论文 |
源URL | [http://ir.sinap.ac.cn/handle/331007/25846] |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
推荐引用方式 GB/T 7714 | Shi, XM,Wang, XD,Yu, Q,et al. Structure alterations in Al-Y-based metallic glasses with La and Ni addition[J]. JOURNAL OF APPLIED PHYSICS,2016,119(11):—. |
APA | Shi, XM.,Wang, XD.,Yu, Q.,Cao, QP.,Zhang, DX.,...&Jiang, JZ.(2016).Structure alterations in Al-Y-based metallic glasses with La and Ni addition.JOURNAL OF APPLIED PHYSICS,119(11),—. |
MLA | Shi, XM,et al."Structure alterations in Al-Y-based metallic glasses with La and Ni addition".JOURNAL OF APPLIED PHYSICS 119.11(2016):—. |
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