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Keywords: sapphire
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Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011404.
Published Online: December 4, 2008
... simultaneously. The experimental results obtained with polytetrafluoroethylene (PTFE) spheres of different diameters pressed against a sapphire flat under different normal loads are presented, and the effect of sphere diameter and normal load on the creep of the contact parameters is discussed. The present...
Journal Articles
Article Type: Technical Briefs
J. Tribol. October 2006, 128(4): 915–917.
Published Online: June 19, 2006
...Emanuel Diaconescu; Marilena Glovnea Surface deformations measured by laser profilometry in a contact model metal punch-sapphire window yield pressure distribution if the contact area is known. This paper advances a new method to assess this area by reflectivity. The contact model possesses higher...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2006, 128(1): 155–167.
Published Online: May 17, 2005
...S. Kondo; R. S. Sayles; M. J. S. Lowe The paper describes an experimental technique combining optical interferometry and ultrasonic attenuation to measure the bulk modulus (compressibility) and film thickness profiles of oil and grease films entrapped between a stationary steel ball and a sapphire...