Electrical conductivity, microstructure and wear properties of Cu-Mo coatings

In this study, Cu–Mo composite coatings were produced on copper substrate by plasma spray technique. Electrical conductivity, microstructure and wear properties of the composite coatings were investigated. Microstructure and phase composition of the coatings were examined by using optical microscopy...

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Bibliographic Details
Published in:Research on Engineering Structures and Materials 2019-06, Vol.5 (2)
Main Authors: Islak, Serkan, Çalıgülü, Uğur, Hraam, Husain R.H., Özorak, Cihan, Koç, Vahdettin
Format: Article
Language:English
Subjects:
Coatings
Conductivity
Copper
Eddy current testing
Eddy currents
Electrical resistivity
Electron microscopes
Energy dispersive X ray spectroscopy
Microhardness
Microstructure
Molybdenum
Optical microscopy
Phase composition
Properties (attributes)
Substrates
Tribology
Wear
X-ray diffraction
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Summary:In this study, Cu–Mo composite coatings were produced on copper substrate by plasma spray technique. Electrical conductivity, microstructure and wear properties of the composite coatings were investigated. Microstructure and phase composition of the coatings were examined by using optical microscopy (OM), scanning electron microscope (SEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS). The microhardness experiments were also performed by using a microhardness machine. The electrical conductivity properties of the coatings were evaluated with eddy current instruments. Wear tests were performed by pin-on-disc method. Although the electrical conductivities of the coatings are very small compared to the substrate, it has been determined that the coatings exhibit very good tribological property and high hardness in comparison to the substrate.
ISSN:2148-9807
2149-4088
DOI:10.17515/resm2018.58is0716