Nanotechnology for copper and copper alloys

Raikov, Yu. N.; Ashikhmin, G. V.; Nikolaev, A. K.; Revina, N. I.; Kostin, S. A.

doi:10.1007/s11015-007-0074-5

Cited by 5 publications

(5 citation statements)

References 4 publications

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“…Among the various NMFs, copper foams (Cuf) electrodeposited by DHBT are one of the frontrunners as electrodes for energy applications owing to the abundance, greater electro-migration resistance, lower electrical resistivity, low-cost and versatile nature of the Cu metal. [107][108][109][110] Due to a lower hydrogen overvoltage, dendritic Cufs are more synthetically facile and tuneable than any other NMFs. Additionally, the dependence of electrocatalysts on noble-metals (e.g., Pt, Ir and Ru) in the hydrogen evolution reaction (HER)/oxygen evolution reaction (OER)/oxygen reduction reaction (ORR) limits their large-scale commercial applications, facilitating the scope for the use of porous copper in electrocatalysis and even in the energy storage systems as a cost-effective, stable and scalable alternative.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The versatility of the dynamic hydrogen bubble template derived copper foam on the emerging energy applications: progress and future prospects

Das¹,

Biswas²,

Purkait³

et al. 2022

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The versatility of the dynamic hydrogen bubble template derived copper foam on the emerging energy applications: progress and future prospects

Das¹,

Biswas²,

Purkait³

et al. 2022

J. Mater. Chem. A

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“…4 shows the microstructure of extruded billets with a diameter of 18 and 20 mm made of CuSn0. The analysis of the microstructure showed that in the conditions of plastic processing using Conform technology a homogeneous, well-developed fine-grained structure is provided [11][12][13].…”

Section: Resultsmentioning

confidence: 99%

To the Question of the Manufacturing Ability a Contact Wire by Continuous Casting Rod

Mysik

Sulitsin

Morgunov³

2021

SSP

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The article presents the results of pilot-industrial experiments in the field of manufacturing technology of contact wire made of Cu-Sn alloys. Cast rods with a diameter of 20 mm, made of CuSn0.04, CuSn0.1, CuSn0.2, CuSn0.3, CuSn0.4 alloys, were obtained in a continuous casting plant on an Upcast system. Cast rods were deformed using a Conform technology, and extruded billets with a diameter of 18 and 20 mm were produced, which were subsequently drawn on a shaped contact wire with a cross section of 100 mm2. Cast rods macrostructure and microstructure were studied. The macrostructure quantitative assessment of samples was studied in a cross and longitudinal section. A plot of the effect of the tin content in the alloy on the average grain area in cross section is obtained. An increase in the tin content in the alloy leads to a decrease in the average grain area. An analysis of the rod microstructure in a cross section showed that the structure is a grain of an α-solid solution of tin in copper, and the grain boundaries are thin and clean. After deformation by Conform technology a uniform fine-grained structure is ensured. The effect of the tin content in the alloy on the Brinell hardness of cast billets, made by Conform technology, is determined. An increase in the tin content in the alloy leads to an increase in the hardness of both cast and deformed billets. The microstructure analysis of the contact wire in the cross section is carried out. The mechanical and electrical properties of the contact wire with a cross section of 100 mm2 are determined. An analysis of the results showed when the tin content in the alloy is up to 0.4 wt. %, the required level of mechanical and electrical properties of the contact wire is not provided. It may be necessary to change the size of the initial billet before drawing or to increase the tin content in the alloy more than 0.4 wt. %.

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“…The temperature‐dependent material parameters E , v , α , H ,

A_{0}

, Q , n ,

\left(\sigma\right)_{Y}

of the constitutive model ()–() for polycrystalline copper are taken from the literature [ 27,55,56,58–61 ] and used in the numerical simulations in Section 3.4, 4, and 5.…”

Section: Modeling and Simulationmentioning

confidence: 99%

Multiphysics Simulation and Experimental Investigation of the Densification of Metals by Spark Plasma Sintering

Semenov,

Trapp,

Nöthe

et al. 2023

Adv Eng Mater

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Multi‐variant experimental investigations and multi‐physics microstructural modeling of the spark plasma sintering process of metallic powders have been performed up to a relative density of approximately 80 %. In comparison, the effect of sintering temperature, pressure and particle size on the interparticle contact area growth and axial shrinkage of cylindrical specimens of copper and nickel particles is measured in laboratory scaled tests. In the present research, for the first time all relevant for sintering phenomena were considered simultaneously: the fully coupled thermo‐electro‐mechanical modeling of the spark plasma sintering processes, additionally taking into account for lattice, grain boundary, surface diffusion, electromigration and thermomigration has been carried out. The computational analysis of various physical phenomena allows to identify dominant and insignificant mechanisms. The two‐level numerical simulation includes the modeling of the sintering setup at the macroscopic level and the neck formation process in particle chain systems at the microscopic level. The results of the numerical simulations show a very good agreement with the experimental data. Therefore, the impact of electrical and mechanical loads as well as of particle size on microscopic distribution of temperature, inelastic strain and on densification has been studied by the finite element simulations.This article is protected by copyright. All rights reserved.

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Nanotechnology for copper and copper alloys

Cited by 5 publications

References 4 publications

The versatility of the dynamic hydrogen bubble template derived copper foam on the emerging energy applications: progress and future prospects

The versatility of the dynamic hydrogen bubble template derived copper foam on the emerging energy applications: progress and future prospects

To the Question of the Manufacturing Ability a Contact Wire by Continuous Casting Rod

Multiphysics Simulation and Experimental Investigation of the Densification of Metals by Spark Plasma Sintering

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