Preparation of Carbon Nanotube Encapsulated Copper Nanowires and Their Use as a Reinforcement for Y−Ba−Cu−O Superconductors

Abstract

Copper nanowires with multiwall carbon nanotubes (MWNTs) encapsulated inside were prepared via surface modification of MWNTs followed by chemical deposition of copper on surfaces. These MWNTs-encapsulated copper nanowires were investigated as a reinforcement to improve the mechanical strength of the Y-Ba-Cu-O superconductor. TEM and SEM reveal that MWNTs are uniformly coated by copper and the diameters of the prepared MWNTs-encapsulated Cu nanowires range from 50 to 150 nm and the lengths are up to several micrometers. These MWNTs-containing Cu nanowires could effectively improve the hardness of the Y-Ba-Cu-O without sacrificing its superconductivity. The Vicker's hardness of the Y-Ba-Cu-O is reinforced by ∼20% after 5 wt % of MWNTs incorporation. This study presents the first result that demonstrates the feasibility of the reinforcement of brittle YBaCuO superconductor by using MWNTs.

Dissolution and aggregation of Cu nanoparticles in culture media: effects of incubation temperature and particles size

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Clinical Characteristics, Sex Hormones, and Long‐Term Follow‐Up in Swiss Postmenopausal Women Presenting With Takotsubo Cardiomyopathy

“…Due to its high aspect ratio and high mechanical strength, carbon nanotube (CNT) has been investigated as a reinforcement for polymers to improve their mechanical properties. Mechanical properties of several polymers reinforced by CNT have been reported 1–10. Well dispersion of CNT in polymer matrices is critical to achieve such reinforced mechanical properties.…”

Encapsulating a Superconducting Material, MgCNi3, in a Carbon Nanoflask

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