Indexed by:
Abstract:
Aluminum/polyether ether ketone (Al/PEEK) laminates, valued for lightweight and corrosion resistance in aerospace and transportation, face challenges in bonding Al alloy and PEEK due to mismatched thermal expansion and PEEK's chemical inertness. This study introduces a novel approach combining carbon nanotube (CNT) coating with laser bionic texturing inspired by natural structures (e.g., bird feathers, butterfly wings). AA6060/PEEK shear samples were fabricated via the hot-pressing, and the effects of CNT areal density, laser linear spacing, bionic textures and fractal number on the shear strength were analyzed. Techniques such as SEM, Raman spectroscopy, and X-ray photoelectron spectroscopy were employed to investigate the underlying mechanisms further. The results demonstrate that the shear strength of wave-textured samples with optimized CNT areal density and fractal number is about twice as high as that of linear-textured samples without CNTs. Notably, the interface delamination shifts to AA6060 matrix failure, confirming robust bonding. The results also indicated that the enhanced mechanisms of this method include the micro-nano mechanical interlocking, chemical bond formation, and CNT bridging effect at the interface. This research provides new insights into enhancing the Al/PEEK interfacial adhesion. © 2025 Elsevier Ltd
Keyword:
Reprint 's Address:
Email:
Version:
Source :
Composite Structures
ISSN: 0263-8223
Year: 2025
Volume: 372
6 . 3 0 0
JCR@2023
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: