AVS 56th International Symposium & Exhibition
    Tribology Focus Topic Wednesday Sessions
       Session TR+SE-WeA

Paper TR+SE-WeA3
Tribological Characteristics of a Tungsten Tip/ Au-Ni Alloy Interface, Studied by Means of Combined STM-QCM

Wednesday, November 11, 2009, 2:40 pm, Room C4

Session: Advances in Surface Engineering for Friction and Wear Control
Presenter: L. Pan, North Carolina State University
Authors: L. Pan, North Carolina State University
J. Krim, North Carolina State University
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A two-phase Au-Ni (20 at.% Ni) alloy has recently been suggested as a potential contact material for RF switch microelectromechanical systems (MEMS) switches. Tribological properties impact switch closure behaviour and heating at the interface impacts both the electrical and mechanical properties of the switch. We have thus performed a QCM STM study of heating and wear at the interface between a tungsten tip and a range of gold nickel alloys with varying compositional percentages.The comparison of nano heating generated via friction and surface response to the tip crash would be shown here.