Carbon-nano tube surfaces for low current electrical contact applications

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概要

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• An experimental investigation of gold coated, multi-walled carbon nanotube (CNT) surfaces has been conducted, to determine the limits of these surfaces as electrical contacts. The load conditions were typical of MEMS relay applications; (4V, 1-10mA) with an applied force of 1mN. For these conditions the surfaces were shown to maintain a stable contact resistance over 1 06 switching cycles. To determine the limits, the contact force was increased to 3mN under dry circuit conditions and the current increased to 20mA-50mA for the 1mN contact force. The contact resistance and surface degradation were compared to a reference Au-Au contact surface. For the coated MWCNT surfaces investigated the current loading limit was determined to be 20mA with the contacts failing with increased contact resistance after 70x10^6 cycles.

• 2010-11-04

著者

• Mcbride John

  Faculty Of Engineering And The Environment University Of Southampton

• Spearing Mark

  Faculty of Engineering and the Environment, University of Southampton

• Yunus Esa

  Mechanical Engineering, Institut Teknologi Brunei

• Yunus Esa

  Mechanical Engineering Institut Teknologi Brunei

• Spearing Mark

  Faculty Of Engineering And The Environment University Of Southampton

関連論文

• Carbon-nano tube surfaces for low current electrical contact applications
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• The Contact Resistance Performance of Gold Coated Carbon-Nanotube Surfaces under Low Current Switching

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