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Investigation of surface characteristics and effect of electrodeposition parameters on nickel-based composite coating
Prince Rai Kumar,
Published in ELSEVIER
2021
Volume: 44
   
Issue: 1
Pages: 1079 - 1085
Abstract
In this work, metallic deposition with the help of electrochemical energy is performed with the in-house fabricated experimental set-up. Controlled deposition of nickel and graphite was carried out while varying electrodeposition process parameters namely, bath temperature, deposition time, current density, etc. to achieve optimum condition. The effects of graphite particles on surface morphologies, compositions, coating thickness were investigated by optical microscopy, SEM, EDS, and XRD. Results of XRD and SEM images show that graphite particles have been dispersed uniformly throughout the substrate. Optical microscopy images show the uniform average thickness with excellent surface finish which can be achieved at optimized process parameters such as; 10-minute deposition time, 4.0 pH value of the solution, 8?10 A dm-2 current density, and 40? C bath temperature under specific stirring condition. Further, thermal conductivity and tensile strength of electrodeposited sample have been evaluated. Thermal conductivity of the developed coated substrate is found to be greater than that of the platinum, Al-Ni alloys and silicon nitrides and hence it can be envisioned as potential substrate as micro heaters used in MEMS based applications. ? 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Materials, Processing \& Characterization.
About the journal
JournalData powered by TypesetMATERIALS TODAY-PROCEEDINGS
PublisherData powered by TypesetELSEVIER
ISSN2214-7853
Open AccessNo