Superconducting Current Leads for Cryogenic Systems

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CB88P
Agency Tracking Number: 075271
Amount: $99,909.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: S1.07
Solicitation Number: N/A
Small Business Information
10000 Virginia Manor Road, Beltsville, MD, 20705-4215
DUNS: 78860
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Solomon Kolagani
 Principal Investigator
 (301) 210-1010
Business Contact
 Thomas Hennigan
Title: Controller/Treasurer
Phone: (301) 210-1010
Research Institution
Space flight cryocoolers will be able to handle limited heat loads at their expected operating temperatures and the current leads may be the dominant contributor to the heat load. In the present SBIR, we propose an innovative approach that could significantly reduce heat loads introduced by current carrying leads in a variety of space flight cryocoolers. Our approach uses high-temperature superconducting (HTS) current leads with zero dissipation for DC currents, developed on flexible low-thermal conductivity substrates (ceramic yttria stabilized zirconia). The unique film/substrate combination when implemented for developing low-thermal budget DC current leads is expected to allow thermal loads less than 1 mW when operated between 80K and 10K. Successful accomplishment of program objectives will lead to a unique, low thermal load, superconducting current lead platform, significantly enhancing the over all performance of the cryogenic subsystems.

* Information listed above is at the time of submission. *

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