Results 331 to 340 of about 903,846 (372)

The interactions between attrition, abrasion and erosion in tooth wear.

Monographs in Oral Science, 2014
Tooth wear is the result of three processes: abrasion (wear produced by interaction between teeth and other materials), attrition (wear through tooth-tooth contact) and erosion (dissolution of hard tissue by acidic substances).
R. Shellis, M. Addy
semanticscholar   +1 more source

Occlusal wear simulation with the ACTA wear machine

Journal of Dentistry, 1994
This paper describes how the clinical conditions in stress bearing areas are thought to be simulated in the ACTA wear machine. The wear types simulated are erosive wear and contact sliding wear in the presence of a third-body medium, consisting of natural food substances. Wear due to surface fatigue may also be studied with the wear machine. Wear rates
Prem Pallav, A.J. de Gee
openaire   +3 more sources

Interrelated Effects of Temperature and Environment on Wear and Tribochemistry of an Ultralow Wear PTFE Composite

, 2015
A particular alumina–PTFE nanocomposite has distinguished itself with unusually large wear reductions at trace filler loadings. Recent studies have shown that the formation of carboxylic acid end groups in humid environments is a critical part of the ...
H. S. Khare, A. Moore, D. Haidar, L. Gong, Jiaxin Ye, J. Rabolt, D. Burris   +6 more
semanticscholar   +1 more source

Extraordinary Macroscale Wear Resistance of One Atom Thick Graphene Layer

, 2014
During the last few years, graphene's unusual friction and wear properties have been demonstrated at nano to micro scales but its industrial tribological potential has not been fully realized.
D. Berman, Sanket A. Deshmukh, S. Sankaranarayanan, A. Erdemir, A. Sumant   +4 more
semanticscholar   +1 more source

Enamel wear caused by monolithic zirconia crowns after 6 months of clinical use.

Journal of Oral Rehabilitation, 2014
The purpose of this study was to evaluate enamel wear caused by monolithic zirconia crowns and to compare this with enamel wear caused by contralateral natural antagonists. Twenty monolithic zirconia crowns were placed in 20 patients requiring full molar
T. Stober, J. L. Bermejo, P. Rammelsberg, M. Schmitter   +3 more
semanticscholar   +1 more source

Wearing Text

2017
This chapter examines the act of wearing text. It considers how the author teaches the relationship between the-media and collective identity through an experiment during which students reflect on their own media consumption. As 'wearing' and identity are inextricably linked — the act of dressing in the morning is a process of performance; a ...
openaire   +1 more source

Wear and wear transition mechanisms of ceramics

Wear, 1996
Abstract The combination of indentation, inclined-plane sliding, and wear tests provides useful and unique way to investigate ceramic wear and wear transition mechanisms. The experimental results show that wear mechanisms of ceramics are predominantly dependent on the tribological contact stresses.
Yushu Wang, Stephen M. Hsu
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Wear Mechanism Based on Wear Anisotropy

Tribology Transactions, 2000
Self-mated dry sliding wear experiments were conducted on alumina using a pin-on-disc configuration. Worn alumina surface showed pits and projections in the size and shape of the grains. This paper shows that formation of these pits and projections are due to the wear anisotropy observed in single crystal alumina.
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On Prediction of Wear Coefficients in Sliding Wear

A S L E Transactions, 1983
The wear rates and wear coefficients of metals are analytically predicted based on the delamination theory of wear when the wear rates are controlled by the subsurface crack propagation rate. The wear rate and the wear coefficient are predicted to be directly proportional to the depth of crack location and the crack growth rate. The numerical values of
H.-C. Sin, N. P. Suh
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Tyre wear particles: an abundant yet widely unreported microplastic?

Environmental science and pollution research international, 2020
L. J. Knight, F. Parker-Jurd, Maya Al-Sid-Cheikh, Richard C. Thompson   +3 more
semanticscholar   +1 more source