Ceramic superconductor cryogenic current lead

Details Ceramic superconductor cryogenic current lead Ceramic superconductor cryogenic current lead

1988-07-05

1990-01-23

Harris, George

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

335299, 335300, 174 155, 505886, H01F 500

Patent

active

048958310

ABSTRACT:
A two stage cryocooler sleeve is provided having a second stage heat exchanger system capable of achieving lower temperatures than the first stage heat exchanger. A current lead comprising a ceramic superconductor having a critical temperature greater than the operating temperature of the first stage is tapered. The broader end is thermally coupled to the first stage heat exchanger and the narrow end coupled to the second stage heat exchanger. The tapered ceramic lead reduces the heat conduction from the first heat exchanger to said second heat exchanger.

REFERENCES:
patent: 4783628 (1988-11-01), Huson
"Superconductivity: Fact vs. Fancy", IEEE Spectrum, May, 1988, Karen Fitzgerald, pp. 31-41.

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