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The Study of the Microstructure and Interfacial Reaction of Binary Composite Coating

Fayomi, O. S. I and Popoola, A. P. I. and Loto, C. A. (2016) The Study of the Microstructure and Interfacial Reaction of Binary Composite Coating. In: Crystallizing Ideas – The Role of Chemistry. Springer International Publishing Switzerland. ISBN 978-3-319-31758-8

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Surface modification is known to contribute immensely to the properties 8 of alloys. The motivation behind this present study is to develop a bath with quality 9 coating with targeted Zn–SnO2 reinforced Zn-based composite particulate produced 10 by electrolytic co-deposition route. The influence of SnO2 on Zn–13SnO2 sulphate 11 electrolyte on the properties of the nano-particulate coatings was investigated. SnO2 12 was varied from 0 to 16 wt%. The microchemistry and interfacial structural 13 properties were tested by X-ray diffraction (XRD), optical microscope, scanning 14 electron microscope (SEM) equipped with energy disperse spectrum (EDS). The 15 corrosion degradation properties in 3.65 % NaCl static solution at 40 °C were 16 characterized by high-resolution optical microscope (HR-OPM). The structure of 17 the conditioned composite coating indicates the presence of thin blend phase of 18 ZnSn2, Zn2Sn and Zn. The microstructure revealed good distribution of particulate 19 within the interface. The corrosion rate results properties shows 0.007786 mm/year 20 for Zn–7Sn–0.3 V–S. The study has established that up to 13 wt% SnO2 particulate 21 in bath on mild steel can be used in improving the structural and corrosion resis- 22 tance of mild steel

Item Type: Book Section
Uncontrolled Keywords: Interfacial effect Microstructure Electrochemistry SEM
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: 22 Sep 2017 13:01
Last Modified: 01 Nov 2018 14:06

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