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Electroless Co-P-Carbon Nanotube composite coating to enhance magnetic properties of grain-oriented electrical steel

Goel, Vishu, Anderson, Philip Ian ORCID:, Hall, Jeremy Peter ORCID:, Robinson, Fiona and Bohm, Siva 2016. Electroless Co-P-Carbon Nanotube composite coating to enhance magnetic properties of grain-oriented electrical steel. Journal of Magnetism and Magnetic Materials 407 , pp. 42-45. 10.1016/j.jmmm.2015.12.076

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The effect of Co–P-CNT coating on the magnetic properties of grain oriented electrical steel was investigated. To analyse the coating, Raman spectroscopy, Superconducting QUantum Interference Device (SQUID), single strip testing, Scanning Electron Microscopy (SEM) and talysurf surface profilometry were performed. Raman spectra showed the D and G band which corroborates the presence of Multi-Walled Carbon Nanotubes (MWCNT) in the coating. The magnetic nature of the coating was confirmed by SQUID results. Power loss results show an improvement ranging 13–15% after coating with Co–P-CNT. The resistivity of the coating was measured to be 104 µΩ cm. Loss separation graphs were plotted before and after coating to study the improvement in power loss. It was found that the coating helps in reducing the hysteresis loss. The thickness of the coating was found to be 414±40 nm. The surface profilometry results showed that the surface roughness improved after coating the sample.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Additional Information: This is an open access article under the CCBY-NC-ND license Available online 12 January 2016
Publisher: Elsevier
ISSN: 0304-8853
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 21 December 2015
Last Modified: 02 May 2023 22:17

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