期刊
SCRIPTA MATERIALIA
卷 146, 期 -, 页码 236-240出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2017.12.004
关键词
Metal matrix composites; Nanolaminated structure; Graphene; Compression test; Size effect
类别
资金
- Ministry of Science and Technology of China through the National Key R D Plan [2016YFE0130200, 2017YFB07031001]
- Ministry of Science and Technology of China through the National Key R & D Plan [the Natural Science Foundation of China] [51771111, 51771110, 51131004, 51371115, 51671130, 51501111]
- Science & Technology Committee of Shanghai Municipality [17520712400, 14JC1403300, 15JC1402100, 14DZ2261200, 14520710100]
Uniaxial compression tests were carried out on nanolaminated graphene (reduced graphene oxide, RGO)-Al composite micro-pillars of various diameters. It was found that, when the pillar diameter was an order of magnitude larger than the internal microstructural length scale (Al lamella thickness), the pillars' mechanical behavior resembled that of the corresponding bulk. When the external length scale approached the internal one, however, both mechanical strength and deformation mode of the pillars significantly deviated from their bulk behavior. These results may have implications for the dimensional design of the small scale test specimens fabricated from bulk materials with a real microstructure. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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