@inproceedings{1937d830cef641bd8850fb6df1a63c15,
title = "Modeling the effect of varying electrical voltage on the plastic deformation of a single asperity in hot-switched RF MEMS contacts",
abstract = "The pull-apart of a single asperity gold-gold contact with and without current flow was investigated using large-scale molecular dynamics simulations coupled to a continuum treatment of Joule heating and heat transfer. The initial interface geometry, which was derived from a finite element fractal model of a contact blunted by plasticity, contained an asperity with a contact area of 40 nm2 that was brought into contact with a flat substrate of area 1850 nm . As the contact is pulled apart, the simulations show dislocation emission from steps in the substrate surrounding the asperity contact, as well as a nanowire being drawn between the surfaces with a radius much smaller than that of the initial asperity contact. The results indicate that both the wire-pulling and dislocation emission characteristics are highly dependent on the level of voltage applied, with a marked difference between constant voltage and constant current conditions.",
author = "Crill, {J. W.} and Irving, {D. L.} and Padgett, {C. W.} and M. Zikry and Brenner, {D. W.}",
year = "2008",
doi = "10.1557/proc-1137-ee10-15",
language = "English",
isbn = "9781615673865",
series = "Materials Research Society Symposium Proceedings",
publisher = "Materials Research Society",
pages = "185--190",
booktitle = "Materials Research Society Symposium Proceedings - Nano- and Microscale Materials-Mechanical Properties and Behavior under Extreme Environments",
address = "United States",
note = "Nano- and Microscale Materials-Mechanical Properties and Behavior under Extreme Environments ; Conference date: 01-12-2008 Through 05-12-2008",
}