Interfacial resistance between ceramic superconductor and silver

Ronald Birkhahn, Nicole Browning, Art Youngdahl, Michael T. Lanagan, Roger Poeppel

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

New applications in ceramic superconductor technology require long superconducting bars that carry large currents. Electrical contacts to the bars can be made by sintering silver to the ceramic. Contact resistance arises from the silver and the interfacial zone. A large resistance coupled with high currents could result in power losses that would reduce the benefits of the superconductor. To determine the resistance between the silver and ceramic, 0.5 cm2 lap-joint connections were subjected to four-point electrical tests with pulsed currents greater than 100 A. Results show that the interfacial resistivity between the silver and ceramic at liquid nitrogen temperature was less than 10-7 Ωcm2.

Original languageEnglish (US)
Pages (from-to)67-69
Number of pages3
JournalApplied Superconductivity
Volume2
Issue number1
DOIs
StatePublished - Jan 1 1994

Fingerprint

Ceramic superconductors
Silver
silver
ceramics
lap joints
power loss
Liquid nitrogen
Contact resistance
contact resistance
liquid nitrogen
Superconducting materials
high current
electric contacts
sintering
Sintering
electrical resistivity
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Birkhahn, Ronald ; Browning, Nicole ; Youngdahl, Art ; Lanagan, Michael T. ; Poeppel, Roger. / Interfacial resistance between ceramic superconductor and silver. In: Applied Superconductivity. 1994 ; Vol. 2, No. 1. pp. 67-69.
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Interfacial resistance between ceramic superconductor and silver. / Birkhahn, Ronald; Browning, Nicole; Youngdahl, Art; Lanagan, Michael T.; Poeppel, Roger.

In: Applied Superconductivity, Vol. 2, No. 1, 01.01.1994, p. 67-69.

Research output: Contribution to journalArticle

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