Journal
VACUUM
Volume 216, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2023.112416
Keywords
Carbon nanotubes; Mechanical properties; Electrical conductivity; Cu matrix composites
Ask authors/readers for more resources
To address the trade-off between mechanical and electrical properties in carbon nanotubes (CNTs)/Cu composites, a pre-decorated strategy involving the introduction of WC nanoparticles on CNTs (WC@CNTs) was proposed. The research found that WC was epitaxially grown on the CNTs with an epitaxial orientation relationship (OR) of WC(001) / /CNTs(0002), resulting in a robust WC-CNTs interface and enhanced bonding strength of CNTs-Cu interface. The designed CNTs-WC-Cu interface not only ensured accurate stress/strain transmission but also improved interfacial conductivity, leading to superior mechanical and electrical properties compared to CNTs/Cu composites.
The trade-off between mechanical and electrical properties has been a long-standing challenge for carbon nanotubes (CNTs)/Cu composites. To alleviate such trade-off, a pre-decorated strategy, involving the introduction of WC nanoparticles on CNTs (WC@CNTs), is proposed to accomplish the prominent mechanical-electrical property synergy. It was found that WC was epitaxially grown on the CNTs, which renders the epitaxial orientation relationship (OR) as: (WC(001) / /CNTs(0002)). Such epitaxial OR facilitates the robust WC-CNTs interface by reducing interfacial energy. Meanwhile, WC nanoparticles also enhance the bonding strength of CNTs-Cu interface by strong mechanical interlocking. The designed CNTs-WC-Cu interface not only guarantees accurate stress/strain transmission, but also enhances the interfacial conductivity by reducing interfacial scattering, which contributes to the considerable mechanical and electrical properties of WC@CNTs/Cu over CNTs/Cu. This research provides a feasible strategy for simultaneous improvement of the mechanical and electrical properties of composites.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available