Nanoscale origins of dynamic friction in an asymmetric contact geometry.
Friction, adhesion, and bounce dynamics are found to be asymmetric with respect to sliding direction for a tilted pad sliding at high speed. The differences originate from the nanoscale effects of the mechanical action against the lubricant layer forming an asymmetric meniscus around the pad and from a self-excited vibration induced by friction hysteresis coupled with adhesion hysteresis.
Mate
C Mathew
CM
Hitachi Global Storage Technologies, San Jose Research Center, San Jose, California 95135, USA.
Payne
Robert N
RN
Dai
Qing
Q
Ono
Kyosuke
K