Deposition of perfluoropolyether lubricant films on Si-incorporated diamondlike carbon surfaces

2006 ◽  
Vol 99 (8) ◽  
pp. 08N109 ◽  
Author(s):  
Junho Choi ◽  
Masahiro Kawaguchi ◽  
Takahisa Kato ◽  
Masami Ikeyama
Keyword(s):  
Diamondlike Carbon ◽  
Lubricant Films ◽  
Perfluoropolyether Lubricant ◽  
Carbon Surfaces

Effect of long duration UV irradiation on diamondlike carbon surfaces in the presence of a hydrocarbon gaseous atmosphere

2010 ◽  
Vol 108 (11) ◽  
pp. 114915 ◽  
Author(s):  
A. Riedo ◽  
P. Wahlström ◽  
J. A. Scheer ◽  
P. Wurz ◽  
M. Tulej
Keyword(s):  
Uv Irradiation ◽  
Gaseous Atmosphere ◽  
Long Duration ◽  
Diamondlike Carbon ◽  
Carbon Surfaces

Simulation of ultrathin lubricant films spreading over various carbon surfaces

2000 ◽  
Vol 87 (9) ◽  
pp. 6164-6166 ◽  
Author(s):  
Stephen J. Vinay ◽  
David M. Phillips ◽  
Young Sil Lee ◽  
Charles M. Schroeder ◽  
Xiaoding Ma ◽  
...  
Keyword(s):  
Lubricant Films ◽  
Carbon Surfaces

Spreading of Novel Cyclotriphosphazine-Terminated PFPE Films on Carbon Surfaces

2004 ◽  
Vol 126 (4) ◽  
pp. 751-754 ◽  
Author(s):  
Norio Tagawa ◽  
Tadao Tateyama ◽  
Atsunobu Mori ◽  
Nagayoshi Kobayashi ◽  
Yoshinobu Fujii ◽  
...  
Keyword(s):  
Film Thickness ◽  
Diffusion Coefficients ◽  
Work Of Adhesion ◽  
Monolayer Film ◽  
Apparent Diffusion Coefficients ◽  
End Groups ◽  
Lubricant Films ◽  
Apparent Diffusion ◽  
Matano Interface ◽  
Carbon Surfaces

Spreading characteristics of novel cyclotriphosphazine-terminated Perfluoropolyether (PFPE) films on carbon surfaces were investigated experimentally by using a scanning micro-ellipsometer. The apparent diffusion coefficients of novel lubricants were also studied in order to evaluate the spreading speed and they were compared with the conventional Zdol. It was found that the mobility of cyclotriphosphazine-terminated PFPE films is lower than that of Zdol. This characteristics is dependent on the interactions between the end groups of the lubricants and carbon surfaces and it is found that the tendency of “work of adhesion” for the lubricants has a good correlation with the mobility tendency of the lubricants. In addition, the monolayer film thickness of novel lubricant films as well as conventional Zdol was identified, which was extracted using Matano interface method. As a result, the existing conformation of novel cyclotriphosphazine-terminated PFPE film on carbon surfaces could be estimated, based on the monolayer film thickness results.

Scattering of neutral hydrogen at energies less than 1 keV from tungsten and diamondlike carbon surfaces

2009 ◽  
Vol 27 (5) ◽  
pp. 1188-1195 ◽  
Author(s):  
Patrick P. Hughes ◽  
Michael A. Coplan ◽  
Jeffery N. DeFazio ◽  
Dennis J. Chornay ◽  
Michael R. Collier ◽  
...  
Keyword(s):  
Neutral Hydrogen ◽  
Diamondlike Carbon ◽  
Carbon Surfaces
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