US EPA

3860635 

Journal Article 

Lubricants in future data storage technology 

Jhon, MS; Choi, HJ 

2001 

Yes 

Journal of Industrial and Engineering Chemistry
ISSN: 1226-086X 

7 

5 

263-275 

WOS:000171243500001 

Experimentation and theory for the dynamic behavior of thin perfluoropolyether (PFPE) films, as well as PFPE application to the hard disk drive system, are reviewed. A method for extracting spreading dynamics from the scanning microellipsometry (SME) for various PFPE/solid surface pairs, and the rheological characterization of bulk PFPEs, are extensively reviewed. Furthermore, the interrelationship among SME measurements, surface energy, rheology, and tribology, is discussed. Phenomenological microscale mass transfer theory and Monte Carlo simulation techniques are adopted to model the dynamic behavior of thin film lubricants in a unified manner. The fractal dimension is also introduced for potential use in a fingerprint analysis of lubricant/surface pairs. Applications to replenishment and solvent effects on media noise will also be discussed. Integrated modeling with air bearing/lubricant coupling and its applications are also examined. 

perfluoropolyether; scanning microellipsometry; rheology; Monte Carlo simulation; fractal; air bearing; lubricant