Oxide Adherence and Porcelain Bonding to Titanium and Ti-6A1-4V Alloy

M. Adachi, John Rodway Mackert, E. E. Parry, C. W. Fairhurst

Research output: Contribution to journalArticle

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Abstract

The bonding of an experimental low-fusing porcelain to titanium and Ti-6AI-4V was evaluated by an x-ray spectrometric technique that measures the area that remains covered with porcelain following a controlled deformation of the metallic substrate. Oxide adherence strength values for titanium and Ti- 6AI-4V oxidized at 750° and 1000°C were measured in tension with use of high-strength adhesives. The effect of further oxidation that would occur during porcelain firing was evaluated via simulated porcelain firings without actual porcelain application. Interface cross-sections of the titanium-porcelain and Ti-6AI-4V-porcelain bonds were examined in a scanning electron microscope (SEM). The porcelain was found to delaminate completely from the metal substrate, leaving less than 1% of the surface covered with porcelain. The oxide adherence of the specimens oxidized at 750°C was good, but those oxidized at 1000°C exhibited significantly lower oxide adherence (p = 0.001). The simulated porcelain-firing oxidation treatments also produced a significant decrease in oxide adherence (p = 0.004). The 750°C oxidation treatments produced oxide films too thin to be visualized in the SEM, whereas the 1000°C oxidation treatments produced oxide films approximately 1 µm thick. The lower oxide adherence of the 1-~,m-thick oxide films is consistent with reports in the titanium literature of oxide delamination when the oxide film reaches 1 µm in thickness.

Original languageEnglish (US)
Pages (from-to)1230-1235
Number of pages6
JournalJournal of Dental Research
Volume69
Issue number6
DOIs
StatePublished - Jan 1 1990

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Dental Porcelain
Titanium
Oxides
Electrons
Adhesives
Metals
X-Rays

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Oxide Adherence and Porcelain Bonding to Titanium and Ti-6A1-4V Alloy. / Adachi, M.; Mackert, John Rodway; Parry, E. E.; Fairhurst, C. W.

In: Journal of Dental Research, Vol. 69, No. 6, 01.01.1990, p. 1230-1235.

Research output: Contribution to journalArticle

Adachi, M. ; Mackert, John Rodway ; Parry, E. E. ; Fairhurst, C. W. / Oxide Adherence and Porcelain Bonding to Titanium and Ti-6A1-4V Alloy. In: Journal of Dental Research. 1990 ; Vol. 69, No. 6. pp. 1230-1235.
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