Effect of Interfacial Layers on Wear Behavior of a Dental Glass-Ceramic

Wear studies on a glass‐ceramic dental restorative material were performed under two types of lubrication conditions with distilled water. In one set of experiments, the contact interface was continuously flushed with fresh water to remove the wear debris. In a second set of experiments, the water w...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2000-07, Vol.83 (7), p.1831-1833
Main Authors: Ravikiran, Attota, Jahanmir, Said
Format: Article
Language:English
Subjects:
Applied sciences
Biological and medical sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Dental materials
Exact sciences and technology
Friction
Glass
Glass-ceramics
Glasses
interfaces
Interfaces (materials)
Lubrication
Medical sciences
Scanning electron microscopy
Surface treatment
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Technology. Biomaterials. Equipments
Tribology
Water
wear
Wear of materials
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Summary:Wear studies on a glass‐ceramic dental restorative material were performed under two types of lubrication conditions with distilled water. In one set of experiments, the contact interface was continuously flushed with fresh water to remove the wear debris. In a second set of experiments, the water was not replaced during the testing period. Flushing resulted in a lower friction coefficient and more than twice the wear volume compared with the nonflushing condition. Examination of the worn surfaces in SEM confirmed the presence of an interfacial layer at the sliding interface for the nonflushing experiments. These results suggest that the specific conditions at the sliding interfaces and particularly the nature of interfacial layers must be considered when evaluating the tribological performance of ceramics and especially when the wear data from different studies are compared.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.2000.tb01476.x