... desorption diamond-like carbon friction hydrogen thin films gas-surface interactions humidity DLC environment ultra low friction adsorption Diamondlike carbon (DLC) films are of interest in tribology as solid lubricant coatings for sliding interfaces. DLC films can be made by plasma...

...Shuyu Zhang; Brian Strom; Sung-Chang Lee; George Tyndall For a hard disk drive operating in a humid environment, the water vapor in the slider’s air bearing is typically compressed beyond its saturation vapor pressure, causing the vapor to condense. Consequently, the air bearing pressure decreases...

.... The same trends hold for changes in relative humidity. magnetic tapes laminates deformation stress effects mechanical contact internal stresses stress analysis finite element analysis elastic moduli thermal expansion humidity Figure 12 shows the influence of thermal and hygroscopic...

...P. M. McGuiggan; S. M. Hsu; W. Fong; D. Bogy; C. S. Bhatia The friction force as a function of humidity was measured between thin carbon films coated onto mica surfaces. The friction force was found to be proportional to the area of contact. The shear stress at 0 percent, 33 percent, and 100...