GSTDTAP  > 资源环境科学
DOI10.1038/s41467-017-01692-0
Liquid-like behaviours of metallic glassy nanoparticles at room temperature
Cao, C. R.1,2; Huang, K. Q.1,2; Shi, J. A.1,2; Zheng, D. N.1,2; Wang, W. H.1,2,3; Gu, L.1,2; Bai, H. Y.1,2,3
2019-04-29
发表期刊NATURE COMMUNICATIONS
ISSN2041-1723
出版年2019
卷号10
文章类型Article
语种英语
国家Peoples R China
英文摘要

Direct atomic-scale observations and measurements on dynamics of amorphous metallic nanoparticles (a-NPs) are challenging owing to the insufficient consciousness to their striking characterizations and the difficulties in technological approaches. In this study, we observe coalescence process of the a-NPs at atomic scale. We measure the viscosity of the a-NPs through the particles coalescence by in situ method. We find that the a-NPs have fast dynamics, and the viscosity of the a-NPs exhibits a power law relationship with size of the a-NPs. The a-NPs with sizes smaller than 3 nm are in a supercooled liquid state and exhibit liquid-like behaviours with a decreased viscosity by four orders of magnitude lower than that of bulk glasses. These results reveal the intrinsic flow characteristics of glasses in low demension, and pave a way to understand the liquid-like behaviours of low dimension glass, and are also of key interest to develop size-controlled nanodevices.


领域资源环境
收录类别SCI-E
WOS记录号WOS:000466120200010
WOS关键词GOLD NANOPARTICLES ; SURFACE MOBILITY ; COALESCENCE ; GROWTH ; NUCLEATION ; MICROSCOPY ; PARTICLES ; DIFFUSION ; VISCOSITY ; DEFECTS
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/203569
专题资源环境科学
作者单位1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China;
3.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
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GB/T 7714
Cao, C. R.,Huang, K. Q.,Shi, J. A.,et al. Liquid-like behaviours of metallic glassy nanoparticles at room temperature[J]. NATURE COMMUNICATIONS,2019,10.
APA Cao, C. R..,Huang, K. Q..,Shi, J. A..,Zheng, D. N..,Wang, W. H..,...&Bai, H. Y..(2019).Liquid-like behaviours of metallic glassy nanoparticles at room temperature.NATURE COMMUNICATIONS,10.
MLA Cao, C. R.,et al."Liquid-like behaviours of metallic glassy nanoparticles at room temperature".NATURE COMMUNICATIONS 10(2019).
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