About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Lubricant dynamics in sliding and flying
Abstract
The dynamics of molecularly thin liquid lubricant films in sliding and flying experiments is studied principally by scanning microellipsometry and complemented with both scanning x-ray photoelectron spectroscopy and infrared spectroscopy. Microellipsometric profiling of lubricant thickness is performed in situ, either dynamically or statically on films ranging from 1 to 10 nm. The removal of liquid polyperfluoroether lubricants from sliding and flying tracks, which includes the displacement and loss depends on film thickness, molecular weight, and chemical structure. In flying and sliding, the lubricant removal rate from monolayer films is significantly slower than from multilayer films. In flying, lubricant displacement and loss increase with a decrease in molecular weight.