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Contact Materials for Vacuum Interrupters

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1 Author(s)
Slade, P.G. ; Westinghouse Research Lab.,Pittsburgh

A comprehensive review of the large number of contact materials that have been proposed for vacuum interrupter applications is presented. These contact materials are classified into four major groupings: 1) pure metals, 2) alloys, 3) mixtures of refractory materials and good conductors, and 4) mixtures of semirefractory materials and good conductors. Experimental results are presented that give a comparison of how the different materials perform for different circuit interruption conditions. Four performance criteria are used to provide this comparison: a)contact resistance, b)current interruption ability, c) current chop, and d) contact welding.

Published in:

Parts, Hybrids, and Packaging, IEEE Transactions on  (Volume:10 ,  Issue: 1 )

Date of Publication:

Mar 1974

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