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http://dx.doi.org/10.12925/jkocs.2021.38.6.1561

Zirconia-Alumina Composite Coating Materials for Low Temperature Process  

Choi, Jongwan (Department of Chemistry and Life Science, Sahmyook University)
Publication Information
Journal of the Korean Applied Science and Technology / v.38, no.6, 2021 , pp. 1561-1567 More about this Journal
Abstract
In this study, we have studied synthesis of zirconia-alumina composite coating materials via a low-temperature sol-gel process. The zirconia-alumina composites were prepared by coating zirconia precursor, alumina precursor, and organosilane mixture on a polyethylene terephthalate substrate through three steps: sol-gel process, low-temperature photocuring process, and heat treatment process. The structural properties and element analysis of the composites were confirmed by FT-IR and XPS. The coated composite showed a transmittance of 96% or more in the visible light region with a wavelength of 420 nm or more and pencil hardness of 9H or more. In case of the composite of the molar ratio of zirconia and alumina of 1:4, the highest nanoindentation hardness was measured with 1.212 GPa.
Keywords
Low temperature process; Sol-gel; Zirconia; Alumina; Composites;
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