IMR OpenIR
Simple hexagonal structured gold with eight-coordination formed with ordered structural vacancies
Wang, Xuelu1,2; Chen, Chunjin1,2; Jiang, Binbin1; Duan, Huichao1,2; Du, Kui1
Corresponding AuthorDu, Kui(kuidu@imr.ac.cn)
2022-05-01
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume229Pages:9
AbstractPhase engineering of nanomaterials attracts increasing research interest, as crystal structures of metals often determine their physical and chemical properties. Metals tend to form close-packed crystal structures to maximize their space filling and atomic coordination numbers due to the isotropic metallic bonding. Hitherto no metals yet crystallize with the simple hexagonal packing which has low coordination number and packing fraction. Here, we fabricate a novel simple hexagonal structured gold through in situ selective etching on ordered Cu-Au intermetallic compound, where the new crystal structure has only 8 nearest neighbors for each atom and a low packing fraction of 0.60. The simple hexagonal structured Au demonstrates an electrical conductivity of 389 S/m, approximately 10(5) times lower than that of face centered cubic structured gold, according to first principles calculation, associated with localized valence electrons. The discovery of simple hexagonal structure suggests that metals can form more diverse crystal structures by changing effective atomic volume, which provides a pathway to engineer new structures of metals for novel physical properties and applications. (C) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordStructure Transmission electron microscopy Vacancies Phase transformation Electrical conductivity
Funding OrganizationNational Key Research and Development Program of China ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; National Natural Science Foun-dation of China ; Institute of Metal Research Chinese Academy of Sciences
DOI10.1016/j.actamat.2022.117844
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFA0700701] ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science[2019JH3/30100020] ; National Natural Science Foun-dation of China[91960202] ; National Natural Science Foun-dation of China[52171020] ; National Natural Science Foun-dation of China[51901229] ; Institute of Metal Research Chinese Academy of Sciences[552021-PY07]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000791225200008
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173978
Collection中国科学院金属研究所
Corresponding AuthorDu, Kui
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xuelu,Chen, Chunjin,Jiang, Binbin,et al. Simple hexagonal structured gold with eight-coordination formed with ordered structural vacancies[J]. ACTA MATERIALIA,2022,229:9.
APA Wang, Xuelu,Chen, Chunjin,Jiang, Binbin,Duan, Huichao,&Du, Kui.(2022).Simple hexagonal structured gold with eight-coordination formed with ordered structural vacancies.ACTA MATERIALIA,229,9.
MLA Wang, Xuelu,et al."Simple hexagonal structured gold with eight-coordination formed with ordered structural vacancies".ACTA MATERIALIA 229(2022):9.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xuelu]'s Articles
[Chen, Chunjin]'s Articles
[Jiang, Binbin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xuelu]'s Articles
[Chen, Chunjin]'s Articles
[Jiang, Binbin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xuelu]'s Articles
[Chen, Chunjin]'s Articles
[Jiang, Binbin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.