%0 Journal Article
%T Graphene-coated tungsten nanowires deliver unprecedented modulus and strength
%A Chao-Wei Guo
%A Ju Li
%A Min Wang
%A Wei-Zhong Han
%A Zhi-Wei Shan
%A Zhong-Wei Hu
%J Materials Research Letters
%D 2019
%R https://doi.org/10.1080/21663831.2018.1553801
%X 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¨Cshell structure. GRAPHICAL ABSTRACT IMPACT STATEMENT We report a novel graphene-coated W nanowires that demonstrate unprecedented Young¡¯s modulus (885£¿GPa, twice that of W) and fracture strength (24.7£¿GPa, 66% of the ideal strength)
%U https://www.tandfonline.com/doi/full/10.1080/21663831.2018.1553801