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Titania-carbon nanotubes nanocomposite coating on Mg alloy: microstructural characterisation and mechanical properties

Bakhsheshi-Rad, Hamid Reza and Hamzah, E. and Ismail, Ahmad Fauzi and Aziz, Madzlan and Daroonparvar, Mohammadreza and Parham, Shokoh and Hadisi, Zhina and Mat Yajid, Muhamad Azizi (2018) Titania-carbon nanotubes nanocomposite coating on Mg alloy: microstructural characterisation and mechanical properties. Materials Science and Technology, 34 (4). pp. 378-387. ISSN 0267-0836

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Official URL: http://dx.doi.org/10.1080/02670836.2017.1393975

Abstract

Atmospheric plasma spraying was carried out to deposit a bilayered NiCrAlY/nTiO2-CNT composite coating. Initially, NiCrAlY, as an under-layer with a thickness of around 100 µm, was deposited. Afterwards, nanostructured TiO2 (nTiO2), as an over-layer with a thickness of 135 μm, was deposited with and without the incorporation of carbon nanotubes (CNTs) on the Mg alloy surface. In contrast to NiCrAlY and NiCrAlY/nTiO2, the NiCrAlY/nTiO2-CNT nanocomposite coating displayed a higher bonding strength. The wear behaviour of the coatings was examined by the pin-on-disc test and the results revealed that the incorporation of CNTs into the nTiO2 coating considerably enhanced the tribological behaviour of Mg alloy due to the CNT’s bridging mechanism.

Item Type:Article
Uncontrolled Keywords:carbon nanotube, Magnesium alloys
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:85945
Deposited By: Widya Wahid
Deposited On:30 Jul 2020 15:39
Last Modified:30 Jul 2020 15:39

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