Impact of SiO2 on the morphology and mechanical properties of sol-gel derived coatings.pdf (469.62 kB)
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Impact of silica nanoparticles on the morphology and mechanical properties of sol-gel derived coatings

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journal contribution
posted on 24.04.2019, 14:38 by LV Mora, A Taylor, S Paul, R Dawson, C Wang, W Taleb, J Owen, A Neville, R Barker
Although corrosion resistance and mechanical properties of sol-gel coatings have been studied independently, there are limited studies that consider both collectively. However, since any form of mechanical damage could impair the protective function of the coating, it is prudent to consider the mechanical durability of coatings as well as their corrosion resistance. The present work considers the impact of silica nanoparticles on the morphology and mechanical properties of a sol-gel derived coating. The relationships between the results obtained from tests such as atomic force microscopy (AFM), nanoindentation or erosion test with previously reported corrosion results obtained via salt spray or electrochemical impedance spectroscopy (EIS) are discussed. Results show that reinforcing a sol-gel coating with silica nanoparticles and, particularly, functionalised silica nanoparticles led to coatings with improved mechanical properties and enhanced erosion impact resistance. The role of nanoparticles on improving mechanical properties and corrosion resistance, which is of importance within the coating industry, is discussed.

Funding

The author would like to thank the Lloyd's Register Foundation for sponsoring this PhD research and the FCR Team at TWI for their support. [Lloyd's Register Foundation] is a charitable foundation, helping to protect life and property by supporting engineering-related education, public engagement and the application of research.

History

Citation

Surface and Coatings Technology, 2018, 342, pp. 48-56 (9)

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Version

AM (Accepted Manuscript)

Published in

Surface and Coatings Technology

Publisher

Elsevier

issn

0257-8972

Acceptance date

21/02/2018

Copyright date

2019

Available date

24/04/2019

Publisher version

https://www.sciencedirect.com/science/article/pii/S0257897218302068?via=ihub

Language

en