Abstract
Uniform dispersion of unbundled carbon nanotubes (CNTs) was the bottleneck to convert their attractive properties to CNTs-reinforced composites. In this study, a solution ball milling (SBM) approach was developed to homogeneously disperse CNTs in Al matrix composites (AMCs). The process integrated strategies of solution coating, mechanical ball milling, and Al flake producing into a simple organic unity. The dispersion quality, crystal structure, and strengthening effect of CNTs in AMCs processed by SBM were investigated through scanning electron microscopy, transmission electron microscopy, Raman analysis, and tensile tests. Compared with previous methods, the SBM process was simple and effective to obtain a homogeneous CNT dispersion with a large aspect ratio and small CNT damages. The tensile strength of Al matrix was noticeably enhanced by CNT additions agreeing with the potential strengthening effect predicted by the load transfer mechanism. Shortened carbon nanotubes (CNT) were completely transformed to in situ Al4C3 nanorods by template reaction of CNT with Al matrix via powder metallurgy. Strong Al–Al4C3 interface, good distribution and complete single-crystal structure of Al4C3 nanorods, resulted in a remarkably improved strengthening effect in Al matrix composites. It concluded that in situ formed Al4C3 nanorod was a novel promising reinforcement for designing high-performance Al nanocomposites.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
