Disorder in M(n+1)AX(n) phases at the atomic scale

doi:10.1038/s41467-019-08588-1

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	Disorder in M(n+1)AX(n) phases at the atomic scale
	Wang, Chenxu 2,3; Yang, Tengfei 3; Tracy, Cameron L.2; Lu, Chenyang 4; Zhang, Hui 5; Hu, Yong-Jie 6; Wang, Lumin 4; Qi, Liang 6; Gu, Lin 1; Huang, Qing 7
刊名	NATURE COMMUNICATIONS
	2019-02-07
卷号	10 页码:9
ISSN号	2041-1723
DOI	10.1038/s41467-019-08588-1
通讯作者	Ewing, Rodney C.(rewing1@stanford.edu) ; Wang, Yugang(ygwang@pku.edu.cn)
英文摘要	Atomic disordering in materials alters their physical and chemical properties and can subsequently affect their performance. In complex ceramic materials, it is a challenge to understand the nature of structural disordering, due to the difficulty of direct, atomic-scale experimental observations. Here we report the direct imaging of ion irradiation-induced antisite defects in M(n+1)AX(n) phases using double CS-corrected scanning transmission electron microscopy and provide compelling evidence of order-to-disorder phase transformations, overturning the conventional view that irradiation causes phase decomposition to binary fccstructured Mn+1Xn. With the formation of uniformly distributed cation antisite defects and the rearrangement of X anions, disordered solid solution gamma-(M(n+1)A)X-n phases are formed at low ion fluences, followed by gradual transitions to solid solution fcc-structured (M(n+1)A)X-n phases. This study provides a comprehensive understanding of the order-to-disorder transformations in M(n+1)AX(n) phases and proposes a method for the synthesis of new solid solution (M(n+1)A)X-n phases by tailoring the disorder.
资助项目	National Magnetic Confinement Fusion Energy Research Project of China[2015GB113000] ; National Natural Science Foundation of China[11675005] ; Energy Frontier Research Center Materials Science of Actinides - U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences[DE-SC0001089] ; University of Michigan ; Office of Science of the U.S. Department of Energy[DE-AC02-05CH11231] ; National Science Foundation[ECCS-1542152] ; Advanced Research Computing at the University of Michigan, Ann Arbor
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000458008700001
资助机构	National Magnetic Confinement Fusion Energy Research Project of China ; National Natural Science Foundation of China ; Energy Frontier Research Center Materials Science of Actinides - U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences ; University of Michigan ; Office of Science of the U.S. Department of Energy ; National Science Foundation ; Advanced Research Computing at the University of Michigan, Ann Arbor
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/131709]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ewing, Rodney C.; Wang, Yugang
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 2.Stanford Univ, Dept Geol Sci, Stanford, CA 94305 USA 3.Peking Univ, Ctr Appl Phys & Technol, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 4.Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA 5.Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia 6.Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA 7.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 8.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chenxu,Yang, Tengfei,Tracy, Cameron L.,et al. Disorder in M(n+1)AX(n) phases at the atomic scale[J]. NATURE COMMUNICATIONS,2019,10:9.
APA	Wang, Chenxu.,Yang, Tengfei.,Tracy, Cameron L..,Lu, Chenyang.,Zhang, Hui.,...&Wang, Yugang.(2019).Disorder in M(n+1)AX(n) phases at the atomic scale.NATURE COMMUNICATIONS,10,9.
MLA	Wang, Chenxu,et al."Disorder in M(n+1)AX(n) phases at the atomic scale".NATURE COMMUNICATIONS 10(2019):9.