Abstract
A copper-based electrical-contact composite material hardened by disperse zinc oxide and zinc titanate is studied by scanning electron microscopy and energy dispersive X-ray microanalysis. The distribution of oxide phases in the samples containing 2.5 wt % oxide nanopowder mixture in an initial charge is found to be uniform. An increase in the amount of oxides leads to an increase in their sized in sintering. A relation between the sample wear and the sample composition is obtained during laboratory tests. It is shown that the introduction of more than 2.5 wt % oxide mixture results in intense wear of the working surface of the sample and an increase in the running-in period of contacts.
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Original Russian Text © G.M. Zeer, E.G. Zelenkova, V.V. Beletskii, S.V. Nikolaev, A.N. Kozhurin, M.Yu. Kuchinskii, O.A. Grigor’eva, 2015, published in Zhurnal Tekhnicheskoi Fiziki, 2015, Vol. 60, No. 12, pp. 88–93.
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Zeer, G.M., Zelenkova, E.G., Beletskii, V.V. et al. Microstructure and properties of an electrocontact Cu–(ZnO/TiO2) material. Tech. Phys. 60, 1823–1828 (2015). https://doi.org/10.1134/S1063784215120270
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DOI: https://doi.org/10.1134/S1063784215120270