Jin Tang#, Heyi Liang#, An Ren, Liang Ma, Wei Hao, Yuqing Yao, Letian Zheng, Hanying Li, Qi Li*#
Adv. Mater. 2024, 36 (26), 2400080
Abstract:
A type of copper-nanocluster-polymer composites is reported and showcased that their 3D nanolattices exhibit a superior combination of high strength, toughness, deformability, resilience, and damage-tolerance. Notably, the strength and toughness of ultralight copper-nanocluster-polymer nanolattices in some cases surpass current best performers, including alumina, nickel, and other ceramic or metallic lattices at low densities. Additionally, copper-nanocluster-polymer nanolattices are super-resilient, crack-resistant, and one-step printed under ambient condition which can be easily integrated into sophisticated microsystems as highly effective internal protectors. The findings suggest that, unlike traditional nanocomposites, the laser-induced interface and the high fraction of ultrasmall Cu15 nanoclusters as crosslinking junctions contribute to the marked nonlinear elasticity of copper-nanocluster-polymer network, which synergizes with the lattice-topology effect and culminates in the exceptional mechanical performance.
URL:
https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202400080
* Corresponding author
# denotes equal contributions
