Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries

doi:10.1126/science.aax6511

IMR OpenIR

	Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries
	Song, Miao 1; Zhou, Gang 2; Lu, Ning 3; Lee, Jaewon 1,4; Nakouzi, Elias 1; Wang, Hao 2; Li, Dongsheng 1
通讯作者	Li, Dongsheng(dongsheng.li2@pnnl.gov)
	2020-01-03
发表期刊	SCIENCE
ISSN	0036-8075
卷号	367 期号:6473 页码:40-+
摘要	Natural and synthetic nanoparticles composed of fivefold twinned crystal domains have distinct properties. The formation mechanism of these fivefold twinned nanoparticles is poorly understood. We used in situ high-resolution transmission electron microscopy combined with molecular dynamics simulations to demonstrate that fivefold twinning occurs through repeated oriented attachment of similar to 3-nanometer gold, platinum, and palladium nanoparticles. We discovered two different mechanisms for forming fivefold twinned nanoparticles that are driven by the accumulation and elimination of strain. This was accompanied by decomposition of grain boundaries and the formation of a special class of twins with a net strain of zero. These observations allowed us to develop a quantitative picture of the twinning process. The mechanisms provide guidance for controlling twin structures and morphologies across a wide range of materials.
资助者	U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences ; DOE
DOI	10.1126/science.aax6511
收录类别	SCI
语种	英语
资助项目	U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences[KC0203020:67037] ; DOE[DE-AC05-76RLO1830]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000506686400030
出版者	AMER ASSOC ADVANCEMENT SCIENCE
引用统计	被引频次：177[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136610
专题	中国科学院金属研究所
通讯作者	Li, Dongsheng
作者单位	1.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99352 USA 2.Chinese Acad Sci, Inst Met Res, Div Titanium Alloys, Shenyang 110016, Peoples R China 3.Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA 4.Univ Missouri, Dept Biomed Biol & Chem Engn, Columbia, MO 65211 USA
推荐引用方式 GB/T 7714	Song, Miao,Zhou, Gang,Lu, Ning,et al. Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries[J]. SCIENCE,2020,367(6473):40-+.
APA	Song, Miao.,Zhou, Gang.,Lu, Ning.,Lee, Jaewon.,Nakouzi, Elias.,...&Li, Dongsheng.(2020).Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries.SCIENCE,367(6473),40-+.
MLA	Song, Miao,et al."Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries".SCIENCE 367.6473(2020):40-+.