Linked Life Data

2191979

Source:http://linkedlifedata.com/resource/pubmed/id/2191979

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1990-7-24
pubmed:abstractText
The bonding of an experimental low-fusing porcelain to titanium and Ti-6Al-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-6Al-4V oxidized at 750 degrees and 1000 degrees 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-6Al-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 degrees C was good, but those oxidized at 1000 degrees 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 degrees C oxidation treatments produced oxide films too thin to be visualized in the SEM, whereas the 1000 degrees C oxidation treatments produced oxide films approximately 1 micron thick. The lower oxide adherence of the 1-micron-thick oxide films is consistent with reports in the titanium literature of oxide delamination when the oxide film reaches 1 micron in thickness.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-0345
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1230-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Oxide adherence and porcelain bonding to titanium and Ti-6Al-4V alloy.
pubmed:affiliation
Division of Dental Materials, School of Dentistry, Medical College of Georgia, Augusta 30912-1264.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.