Preparation of CNTs/Cu composites with good electrical conductivity and excellent mechanical properties

Fu, Shaoli; Chen, Xiaohong; Liu, Ping

doi:10.1016/j.msea.2019.138656

Cited by 71 publications

(17 citation statements)

References 49 publications

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“…Futhermore, a number of studies have addressed the improvement of the electrical performance of the NW network. CNTs/Cu composites show fascinating electrical and thermal conductivities with a larger value of thermal expansion (CTE) coefficient than copper [8]. CNTs based composites also have been utilized in the design of microscopic flexible electronics, such as high-performance Li-S batteries [9], Li-ion batteries [10], and capacitive strain sensors for human motion detection [11,12].…”

Section: Introductionmentioning

confidence: 99%

Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers

et al. 2020

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Hybrid nanotube composite systems with two different types of fillers attract considerable attention in several applications. The incorporation of secondary fillers exhibits conflicting behaviors of the electrical conductivity, which either increases or decreases according to the dimension of secondary fillers. This paper addresses quantitative models to predict the electrical performance in the configuration of two dimensional systems with one-dimensional secondary fillers. To characterize these properties, Monte Carlo simulations are conducted for percolating networks with a realistic model with the consideration of the resistance of conducting NWs, which conventional computational approaches mostly lack from the common assumption of zero-resistance or perfect conducting NWs. The simulation results with nonperfect conductor NWs are compared with the previous results of perfect conductors. The variation of the electrical conductivity reduces with the consideration of the resistance as compared to the cases with perfect conducting fillers, where the overall electrical conductivity solely originates from the contact resistance caused by tunneling effects between NWs. In addition, it is observed that the resistance associated with the case of invariant conductivity with respect to the dimension of the secondary fillers increases, resulting in the need for secondary fillers with the increased scale to achieve the same electrical performance. The results offer useful design guidelines for the use of a two-dimensional percolation network for flexible conducting electrodes.

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Section: Introductionmentioning

confidence: 99%

Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers

et al. 2020

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“…Data on the content of metals in 13 WEEE are presented in Table S6. For WEEE (except IB), Cu is abundant in WEEE mainly due to its performance as electrical conductor (Fu et al, 2020) which is an essential property of cables and printed wiring boards, which together account for 4-7% of WEEE (Li et al, 2018;Oguchi et al, 2013). AC contains the highest Cu content (158 965 mg/kg), because its performance in thermal conductivity (Bhanushali et al, 2017); followed by CFL (111 000 mg/kg) where copper is a part of Printed Wring Boards (PWBs) and coil drives (Lim et al, 2013).…”

Section: Metal Contentmentioning

confidence: 99%

Comparative effectiveness of technical and regulatory innovations to reduce the burden of electronic waste

Chen

Wang

et al. 2021

Resources, Conservation and Recycling

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Waste Electrical and Electronic Equipment (WEEE) contain toxic metals and organic compounds, posing significant threats to human health and environmental quality. The risks vary according to equipment types and components that are influenced by innovations in technical configuration and regulatory policy. To disentangle the relative impacts of these influences in protecting health and environment, we investigated 13 WEEE and 14 components using a life cycle impact assessment procedure. Additionally, we analyzed Waste Mobile Phones (WMPs) and Waste Printed Circuit Boards (WPCBs) from computers manufactured between 2002 and 2010 to identify trends of toxic chemicals and potential adverse impacts associated with technological configurations and regulatory policies. The results show that, among WEEE, Cathode Ray Tube TV presented the highest carcinogenicity and non-carcinogenicity toxicity potential. Waste Air Conditioner posed the highest potential for ecotoxicity. Among electronic components, Waste Organic Light Emitting Diode displays posed the highest potential risk for carcinogenesis, whereas WPCBs from laptop computers posed the highest potential risk for non-cancer diseases. Solid State Drives posed the highest risks for ecotoxicity. Chromium was associated with risk of carcinogenesis and non-cancer diseases; whereas Al and Fe posed the highest potential for ecotoxicological impacts. During the period covered by the study, innovations in technological configurations and regulatory policies demonstrably reduced the potential toxicity risks posed by E-waste, attributable to reduction in the concentrations of toxic organic chemicals in WMPs/WPCBs. These results advance current understanding of strategies to reduce the risks posed by WEEE through coordination of technological innovations and regulatory policies.

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“…And the CNTs formed carbon lubricating film, so the plastic deformation on the worn surface was reduced. Fu et al (2020) prepared the CNTs/Cu composites by alloying method. Compared with pure Cu, hardness and tensile strength of composites were increased by 24.7% and 36.1%, respectively, and electrical conductivity was 92.9% International Annealed Copper Standard (IACS).…”

Section: Introductionmentioning

confidence: 99%

Electrical wear performance of copper matrix composites reinforced with hybrid CNTs and TiB₂ particles

Yang

Guo

Song

et al. 2022

ILT

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Purpose Copper matrix composites are widely used in high-voltage switches, electrified railways and other electric friction fields. The purpose of this study is to improve its wear resistance and investigate the effect of hybrid carbon nanotubes (CNTs) and titanium diboride (TiB2) particles reinforced copper matrix composites on electrical wear performance. Design/methodology/approach CNTs and TiB2 particles were introduced into copper matrix simultaneously by powder metallurgy combined with electroless copper plating. Electrical wear performance of the composites was studied on self-made pin on disk electrical wear tester. Findings The results show that the friction coefficient and wear rate of (1CNTs–4TiB2)/Cu composite are respectively reduced by 40% and 25.3%, compared with single TiB2/Cu composites. The micron-sized TiB2 particles can hinder the plastic deformation of composites, and bear part of the load to weaken the wear rate of composites. CNTs with the self-lubricating property can form lubricating layer to reduce the friction coefficient of composites. Originality/value This work can provide a design method for further improving the wear properties of TiB2/Cu composites.

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Preparation of CNTs/Cu composites with good electrical conductivity and excellent mechanical properties

Cited by 71 publications

References 49 publications

Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers

Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers

Comparative effectiveness of technical and regulatory innovations to reduce the burden of electronic waste

Electrical wear performance of copper matrix composites reinforced with hybrid CNTs and TiB₂ particles

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Preparation of CNTs/Cu composites with good electrical conductivity and excellent mechanical properties

Cited by 71 publications

References 49 publications

Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers

Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers

Comparative effectiveness of technical and regulatory innovations to reduce the burden of electronic waste

Electrical wear performance of copper matrix composites reinforced with hybrid CNTs and TiB2 particles

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Product

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Electrical wear performance of copper matrix composites reinforced with hybrid CNTs and TiB₂ particles