Contact Hysteresis Between Two Surfaces Separated by a Zdol Boundary Layer

Abstract

Slider-disk contact hysteresis is investigated as a function of the Zdol bonded fraction at constant film thickness. The contact hysteresis is found to increase with the Zdol bonded fraction. AFM force-distance curves also indicate increasing work of adhesion and hysteresis with increasing bonded fraction. The data is interpreted on the basis of surface energy parameters.

Keywords

• tribology
• perfluoropolyether
• disk lubricant
• afm
• surface energy
• zdol