Home » Copper CNT Nano Composite (Cu/CNT, Purity: 99%, APS: 80-100nm)
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Copper CNT Nano Composite: Carbon nanotubes (CNTs) are known for their extraordinary mechanical, electrical and thermal properties. These properties make them ideal reinforcements in the metal matrix. Particularly, the combination of Cu/CNT is interesting in view of excellent thermal, electrical and physical properties of copper. Comparatively, a small amount of CNTs is sufficient to improve the properties of composites as against the conventional micron size particle reinforced composites. The strength, wear resistance and corrosion resistance of the composites increase significantly with an increase of volume fraction of CNTs.
Copper CNT Nano Composite: Uniform dispersion of carbon nanotube (CNT) and strong interface combination between nano‑carbon reinforcement and metal matrix are of extremely importance to fabricate CNT/metals composite by powder metallurgy method due to the hereditary effects. CNT/Cu composite powder was fabricated through Spray Pyrolysis (SP). CNT/Cu composite powder with uniform dispersion and good combination between CNT and Cu particles could be obtained by SP even though high composition of CNT was added.
Copper CNT Nano Composite: Carbon nanotubes helps in reducing the density at the same time enhance the mechanical property of the composites which are in demand currently. Copper-carbon nanotubes composite have been successfully fabricated and they are suitable for electrical, thermal and structural applications. Various methods are used to fabricate Cu-CNT composite like powder metallurgy, molecular-level-mixing, electroless deposition, electrodeposition and melt stirring.
Copper CNT Nano Composite: copper (Cu) matrix reinforced by a small amount of carbon nanotubes (CNT, about 4% volume fraction) will increase material strength by about 300% while sacrificing some material ductility. The strengthening mechanisms of Cu/CNT nano-composites were firstly studied numerically using 2D axial symmetric unit cell finite element (FE) models in Ls-Dyna, which consist of both copper matrix and CNTs. Two main strengthening mechanisms are found that affect CNTs reinforcement prediction. The first one is the load-bearing effect resulting from boundary condition imposed in the models. The CNTs significantly affect the plastic flow of copper around CNTs during plastic deformation, which is one important reinforcement mechanism because of high aspect ratio (H/D) of CNTs. The second strengthening mechanism is found to be the hardened zone of Cu matrix around CNTs, which is introduced by manufacturing processes and/or the Orowan effect. The Orowan effect plays a key role in reinforcement especially in the nano-scale, which results in a very small inter-particle spacing.
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