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Effect of electro-co-deposition parameters on surface mechanical properties of Cu–TiO2 composite coating

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Abstract

The present work describes processing and properties of Cu–TiO2 electrodeposited coating on copper substrate with optimized current density and ultrafine ceramic TiO2 powder in the plating bath. Direct current electrodeposition process was employed to develop the composite coating with Cu matrix and ceramic oxide (TiO2) nanoparticles as reinforcement on copper substrate. The coatings were developed with 0 (unreinforced), 10 and 30 g l −1 TiO2 powder in bath, at four different current densities (5, 8, 11 and 14 A dm−2) to study the effect of current density and particle concentration in bath on the structure and properties of the developed coatings. Phase, microstructure and compositional analysis of the coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS), respectively. Hardness and wear resistance of the coatings were analysed by using microhardness tester and ball on plate wear tester and improvement in these properties was observed due to particle reinforcement and crystallographic texture.

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Acknowledgement

Partial financial support for this work from the Council of Scientific & Industrial Research, India (Grant no. 22/0563/11/EMR-II) is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Technology Hyderabad, Yeddumailaram, 502 205, Telangana, India

    AKARAPU ASHOK

  2. Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela, 769008, Odisha, India

    H S MAHARANA & A BASU

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  1. AKARAPU ASHOK
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  2. H S MAHARANA
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Correspondence to A BASU.

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ASHOK, A., MAHARANA, H.S. & BASU, A. Effect of electro-co-deposition parameters on surface mechanical properties of Cu–TiO2 composite coating. Bull Mater Sci 38, 335–342 (2015). https://doi.org/10.1007/s12034-015-0884-1

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  • DOI: https://doi.org/10.1007/s12034-015-0884-1

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