Interfacial resistance between ceramic superconductor and silver

Autor:	Ronald Birkhahn, Art Youngdahl, Michael T. Lanagan, Roger B. Poeppel, Nicole Browning
Rok vydání:	1994
Předmět:	Superconductivity Materials science Contact resistance General Engineering General Physics and Astronomy Sintering Liquid nitrogen Electrical contacts Electrical resistivity and conductivity visual_art visual_art.visual_art_medium Ceramic Composite material Electrical conductor
Zdroj:	Applied Superconductivity. 2:67-69
ISSN:	0964-1807
Popis:	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 cm 2 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 Ωcm 2 .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ba36430d1e30fdc7d38018b1fdf41cf https://doi.org/10.1016/0964-1807(94)90056-6 Zobrazit plný text záznamu