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题名:
Structure alterations in Al-Y-based metallic glasses with La and Ni addition
作者: Shi, XM; Wang, XD; Yu, Q; Cao, QP; Zhang, DX; Zhang, J; Hu, TD; Lai, LH; Xie, HL; Xiao, TQ; Jiang, JZ
刊名: JOURNAL OF APPLIED PHYSICS
出版日期: 2016
卷号: 119, 期号:11, 页码:
关键词: AMORPHOUS-ALLOYS ; ATOMIC PACKING ; CRYSTALLIZATION ; TEMPERATURE ; ALUMINUM ; DYNAMICS ; SYSTEMS ; CO
DOI: 10.1063/1.4944653
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.
文章类型: 期刊文献
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
ISSN号: 0021-8979
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25846
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
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,2016-01-01,119(11):—.
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