Microstructure and properties of an electrocontact Cu–(ZnO/TiO2) material

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 char...

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Bibliographic Details
Published inTechnical physics Vol. 60; no. 12; pp. 1823 - 1828
Main Authors Zeer, G. M., Zelenkova, E. G., Beletskii, V. V., Nikolaev, S. V., Kozhurin, A. N., Kuchinskii, M. Yu, Grigor’eva, O. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2015
Springer
Subjects
Analysis
Classical and Continuum Physics
Physics
Physics and Astronomy
Solid State
Zinc oxide
Copper Matrix
Nanopowder Mixture
Zinc Oxide
Ammonium Hydrocarbonate
Zinc Titanate
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Summary: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.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784215120270