INFLUENCE OF RELATIVE HUMIDITY ON FRICTION CHARACTERISTICS OF THIN FILM DISK MEDIA

Takanori MIYAMOTO, Yasuko ANOO, Shigeru HIRONO, Isamu SATO
1989 Journal of the Magnetics Society of Japan  
The influence of relative humidity on friction characteristics of thin-film disk media is investigated. The thickness of H 2 0 layer adhering to disk media varies greatly with relative humidity, lubricant thickness and functional end groups, thus directly affecting the static friction coefficient. A disk medium coated 20 A thick with a functional liquid lubricant shows a static friction coefficient of less than 0.2, even after a standing time of up to 120 hours under 90% RH.
doi:10.3379/jmsjmag.13.s1_207 fatcat:dibwndklgnhuljmuomn2h6nd5y