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JOM

, Volume 69, Issue 11, pp 2302–2308 | Cite as

Characterization of Copper Coatings Deposited by High-Velocity Oxy-Fuel Spray for Thermal and Electrical Conductivity Applications

  • H. R. Salimijazi
  • M. Aghaee
  • M. Salehi
  • E. Garcia
Article
  • 130 Downloads

Abstract

Copper coatings were deposited on steel substrates by high-velocity oxy-fuel spraying. The microstructure of the feedstock copper powders and free-standing coatings were evaluated by optical and scanning electron microscopy. The x-ray diffraction pattern was utilized to determine phase compositions of powders and coatings. Oxygen content was determined by a LECO-T300 oxygen determiner. The thermal conductivity of the coatings was measured in two directions, through-thickness and in-plane by laser flash apparatus. The electrical resistivity of the coatings was measured by the four-point probe method. Oxygen content of the coatings was two times higher than that of the initial powders (0.35–0.37%). The thermal and electrical conductivities of the coatings were different depending on the direction of the measurement. The thermal and electrical conductivity of the coatings improved after annealing for 6 h at a temperature of 600°C.

Notes

Acknowledgements

Dr. E. Garcia acknowledges the financial support of Project MAT2009-09600 and the Ramon y Cajal Program of the Ministry Economy and Competitiveness of Spain (MINECO).

Supplementary material

11837_2017_2537_MOESM1_ESM.docx (909 kb)
Supplementary material 1 (DOCX 908 kb)

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Copyright information

© The Minerals, Metals & Materials Society 2017

Authors and Affiliations

  • H. R. Salimijazi
    • 1
  • M. Aghaee
    • 1
  • M. Salehi
    • 1
  • E. Garcia
    • 2
  1. 1.Department of Materials EngineeringIsfahan University of TechnologyIsfahanIran
  2. 2.Institute of Ceramics and Glass, ICV-CSICMadridSpain

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