期刊
MATERIALS LETTERS
卷 294, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2021.129800
关键词
Indentation and hardness; Laser processing; Nanocrystalline materials
资金
- National Key Research and Development Program of China [2017YFB1104900]
- National Natural Science Foundation of China [51775387]
In this study, an innovative and environmentally friendly method for preparing nanoporous silver materials using femtosecond laser was demonstrated. The yield strength of the nanoporous silver materials was found to increase monotonously with the increase of laser power, attributed to the decline of grain size and rise of relative density. The research not only proposes a new fabrication method for nanoporous silver materials, but also reveals the influence of fs laser power on their yield strength.
We demonstrated an innovative and environmental-friendly method for preparing nanoporous silver materials using femtosecond laser. We found that the yield strength of nanoporous silver materials increased monotonously with the increase of the laser power due to the decline of grain size and rise of relative density. The yield strength of nanoporous silver materials (2.55 MPa) with relative density 28.78% at the grain size of 42.1 nm was 2.16 times higher than that of nanoporous silver materials (1.18 MPa) with relative density 15.45% at the grain size of 48.2 nm. This work not only proposes a new way to fabricate nanoporous silver materials, but also reveals the influence of fs laser power on the yield strength of nanoporous silver materials. (C) 2021 Elsevier B.V. All rights reserved.
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