Porcelain bonding on Ti: Its dependence on surface roughness, firing time and vacuum level

Adherence of porcelain on titanium and possible bonding mechanisms were studied. The main variables were surface roughness. The bond strength for Al2O3‐blasted rough surfaces was superior to those ground by SiC paper or polished. The fracture was partly cohesive for the Al2O3‐blasted surfaces as a r...

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Bibliographic Details
Published in:Surface and interface analysis 1993-05, Vol.20 (5), p.421-426
Main Authors: Hautaniemi, J. A., Juhanoja, J. T., Herø, H.
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Miscellaneous
Technical ceramics
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Summary:Adherence of porcelain on titanium and possible bonding mechanisms were studied. The main variables were surface roughness. The bond strength for Al2O3‐blasted rough surfaces was superior to those ground by SiC paper or polished. The fracture was partly cohesive for the Al2O3‐blasted surfaces as a result of mechanical interlocking. For smoother surfaces fracture occurred adhesively. Increased firing time and reduced vacuum level decreased the bond strength when mechanical interlocking was weak. This was most likely related to poor adherence of the interfacial oxide layer to the titanium substrate.
ISSN:0142-2421
1096-9918
DOI:10.1002/sia.740200515