Graphene-coated tungsten nanowires deliver unprecedented modulus and strength
Name
Graphene coated tungsten nanowires deliver unprecedented modulus and strength.pdf
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1.61 MB
Format
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Checksum (MD5)
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Author(s)
Hu, Zhong-Wei
Wang, Min
Guo, Chao-Wei
Shan, Zhi-Wei
Li, Ju
Han, Wei-Zhong
Date Issued
December 2018
Journal
Materials Research Letters
Publisher
Taylor & Francis
Citation
Hu, Zhong-Wei et al. “Graphene-Coated Tungsten Nanowires Deliver Unprecedented Modulus and Strength.” Materials Research Letters 7, 2 (December 2018): 47–52 © 2018 The Author(s)
Version
Final published version
Abstract
Tungsten (W) nanowires have a wide range of chemical, electronic, and mechanical applications. However, the modulus and strength of traditional W nanowires are quite low, and how to improve their mechanical performance remains a challenge. Here, we describe a novel graphene-coated W nanowires that demonstrate a Young’s modulus of 885 GPa (twice that of W) and a fracture strength of up to 24.7 GPa (66% of the ideal strength). Both the Young’s modulus and the fracture strength show a strong size effect, resulting from the graphene-nanowire core–shell structure. Keywords: W nanowires; graphene; Young's modulus; fracture strength; size effect
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1080/21663831.2018.1553801
