Abstract
The aim of this study is to discover the enamel substrate adhesion mechanism. Enamel is composed of organics in oxide forms, applied on a metal substrate with a firing temperature range of 800–870°C. Most important factors that affect adhesion of the enamel to the substrate are; enamel composition, firing time, substrate-enamel compatibility and surface roughness of the substrate. Adhesion mechanisms can be explained by 3 base theories; chemical, mechanical and diffusion. This study focuses on examining adhesion mechanisms between enamel coatings and substrates. During laboratory studies, enamel composition variations were investigated for explaining chemical theory; different samples with different surface roughness values were observed via different characterization techniques in order to explain mechanical theory. Adhesion of enamel to the substrate was scaled via SEM and impact tests. It is concluded that; cobalt oxide presence in enamel composition promotes adhesion; adhesion ability deteriorates with lowering cobalt oxide volume. It is proved that; the increment in surface roughness also increases adhesion quality. It is established via SEM analysis that; the dendritic formations along the enamel-substrate interface are oxidation of metal that fuses through enamel.
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Işiksaçan, Ö., Yeşilçubuk, A., Yücel, O. (2015). Substrate-Enamel Interface Relation and Impact on Quality of Enamel. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_181
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DOI: https://doi.org/10.1007/978-3-319-48127-2_181
Publisher Name: Springer, Cham
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