Production technology, structure and properties of Cu–W layered composite condensed materials for electrical contacts

Bukhanovsky, Viktor; Grechanyuk, N. I.; Minakova, R. V.; Mamuzich, I.; Kharchenko, V. V.; Rudnitsky, N. P.

doi:10.1016/j.ijrmhm.2011.03.007

Cited by 30 publications

(10 citation statements)

References 9 publications

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“…The most common strategy is the production of an electrostatically stabilized dispersion, which, in general terms, requires the preparation of a solvent medium in which the particles have a high zeta potential, while keeping the ionic conductivity of the suspensions low. The Cu, Cu/WC, Cu/Graphene and Cu/WC/Graphene A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 6 composite coatings were deposited on 5 cm x 5 cm x 0.5 cm copper coated substrates by using electrophoretic coating technique.…”

Section: Electrophoretic Deposition Processmentioning

confidence: 99%

Co-deposition of Cu/WC/graphene hybrid nanocomposites produced by electrophoretic deposition

Akbulut

Hatipoğlu

Algül

et al. 2015

Surface and Coatings Technology

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Section: Electrophoretic Deposition Processmentioning

confidence: 99%

Co-deposition of Cu/WC/graphene hybrid nanocomposites produced by electrophoretic deposition

Akbulut

Hatipoğlu

Algül

et al. 2015

Surface and Coatings Technology

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“…Moreover, they observed that the addition of WC to Ag increased its hardness, but decreased its electrical conductivity as compared with the addition of W to Ag. Bukhanovsky et al [2] investigated the influence of W addition on the electrical conductivity of Cu-W contact materials. They demonstrated that with an increase in W content the hardness and strength of the Cu-W contact material increased, but electrical conductivity of the Cu-W contact material decreased.…”

Section: Electrical Conductivitymentioning

confidence: 99%

Development and characterization of bronze-Cr-Ni composites produced by powder metallurgy

Çanakçı

Varol

Çuvalcı

et al. 2015

Science and Engineering of Composite Materials

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In this study, the bronze-Cr-Ni composites were prepared by means of the powder metallurgical method. The influence of the composition and compact pressure on microstructure, density, hardness and electrical conductivity was examined. Scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDX) were used to analyze the microstructure of the contact materials. The results showed that density of the bronze-Cr-Ni composites decreased with increasing Ni content. Increasing compact pressure led to lower porosity and consequently improved the density of bronze-Cr-Ni composites. The relative green density increased from 78% to 95% with the increase in the compact pressure from 200 MPa to 800 MPa. The hardness values showed a decrease from 95.1 BHN to 71.6 BHN by the addition of Ni from 1 wt% to 5 wt% at 800 MPa. It was found that addition of Ni at 1 wt% was required to achieve increased hardness and sufficient conductivity for bronze-Cr-Ni composites. The electrical conductivities of contact materials containing 3 wt% Ni and 5 wt% Ni was lower than that of 1 wt% Ni.

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“…The performance of switching directly affects the operational reliability and the life of the switchgear [1][2][3] . With a rapid development of the modern industry, especially the electrical and electronic industry, switch electrical appliances are developing in the direction of high current, miniaturization, high voltage and long life, and the arc extinguishing performance and anti-erosion performance of the contact materials and contact systems are proposed higher requirements [4][5][6] . The ideal contact materials should have excellent electrical conductivity, thermal conductivity, anti-fusion welding, resistance to material transfer, arc erosion resistance and low and stable contact resistance 7 .…”

Section: Introductionmentioning

confidence: 99%

Contrastive Research on Electrical Contact Performance for Contact Materials of Cu-SnO2 and Cu-ZnO2 Alloys

et al. 2019

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Herein, SnO 2 -and ZnO 2 -doped (1.5 wt.%) composite Cu powder was prepared by mechanical alloying (MA) respectively, and both the contact materials of oxide-doped Cu alloys were subsequently obtained by canned hot-pressing powder sintering with hot extrusion combined. Scanning electron microscopy (SEM), laser scanning confocal microscopy (LSCM) and self-designed electrical breakdown device were used for investigating the microstructure and properties including electric conductivity and hardness, especially for electrical contact performance of the Cu-SnO 2 alloy and in compared with the Cu-ZnO 2 alloy. The experimental results show that the hardness of Cu-SnO 2 and Cu-ZnO 2 contact materials are 103.5±1 HV and 192.7±1 HV, respectively, which meet the hardness standard of national standard electrical contact materials. Meanwhile, the relative conductivity %IACS are 7.24% and 6.20%, respectively, which are higher than the traditional Cu-based contact materials. This electrical life simulation test system was designed independently, and the results indicate that the switching times of Cu-SnO 2 contact materials are much more than that of Cu-ZnO 2 . The addition of SnO 2 can effectively improve the arc extinguishing characteristics and the anti-welding performance of the contact materials is enhanced. In summary, SnO 2 -doped Cu-based contact materials possess excellent comprehensive properties, which can provide reference for potential applications in contact materials.

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Production technology, structure and properties of Cu–W layered composite condensed materials for electrical contacts

Cited by 30 publications

References 9 publications

Co-deposition of Cu/WC/graphene hybrid nanocomposites produced by electrophoretic deposition

Co-deposition of Cu/WC/graphene hybrid nanocomposites produced by electrophoretic deposition

Development and characterization of bronze-Cr-Ni composites produced by powder metallurgy

Contrastive Research on Electrical Contact Performance for Contact Materials of Cu-SnO2 and Cu-ZnO2 Alloys

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