Mechanical and opto-electrical response of embedded smart composite coating produced via electrodeposition technique for embedded system in defence application

Fayomi, O. S. I and Atayero, A. A. and Mubiayi, M.P. and AKANDE, I.G and Adewuyi, P. A. and Fajobi, M. A. and Ayara, Williams A. and Popoola, A. P. I. (2019) Mechanical and opto-electrical response of embedded smart composite coating produced via electrodeposition technique for embedded system in defence application. Journal of Alloys and Compounds. pp. 305-313.

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Abstract

The emergence of nanocomposite particulate with the increasing demand for opto-electrical propertiesfor defence application has necessitated this study. In this work, an attempt was made to develop Zn-CeO2/Zn-CeO2-Al2SiO5thinfilm composite on A356 mild steel using electrodeposition technique. Thedeveloped coating was attained in 2 V for 10 min at a constant current density of 1.5 A/cm2and pH of 4.5.The mass concentration of Al2SiO5was varied, ranging from 0 to 15 g. The composite coatings werecharacterized using Scanning electron microscope equipped with energy dispersive spectrometer (SEM/EDS). The corroding properties of the coated and uncoated sample were examined through potentio-dynamic polarization technique via Autolab PGSTAT 101 Metrohm potentiostat/galvanostat with NOVAsoftware of version 2.1.2 in 3.65% NaCl. The electrical characterization was carried out using voltage-ammeter meter and Keithley 2400 series source meter application tester. The opto-electrical investiga-tion was done using a solar simulator with maximum intensity of 1000 W/m2under an air mass of 1.5 ata working intensity of 750 W/m2. The outcome of various test and characterizations revealed that theelectrodeposited Zn-CeO2/Zn-CeO2-Al2SiO5possessed good stability, improved microstructural qualities,better electrical conductivity and outstanding corrosion resistance.

Item Type:	Article
Uncontrolled Keywords:	Microhardness CoatingMild steel Semiconductor Agglomeration Optoelectronics
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Hannah Akinwumi
Date Deposited:	23 Sep 2020 14:44
Last Modified:	23 Sep 2020 14:44
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/13622

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