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Segmented superconducting tape having reduced AC losses and method of making

United States Patent

September 22, 2009
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A superconducting tape having reduced AC losses. The tape has a high temperature superconductor layer that is segmented. Disruptive strips, formed in one of the tape substrate, a buffer layer, and the superconducting layer create parallel discontinuities in the superconducting layer that separate the current-carrying elements of the superconducting layer into strips or filament-like structures. Segmentation of the current-carrying elements has the effect of reducing AC current losses. Methods of making such a superconducting tape and reducing AC losses in such tapes are also disclosed.
Foltyn; Stephen R. (Los Alamos, NM), Jia; Quanxi (Los Alamos, NM), Arendt; Paul N. (Los Alamos, NM), Holesinger; Terry G. (Los Alamos, NM), Wang; Haiyan (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM)
11/ 245,722
October 6, 2005
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. W-704-ENG-36, awarded by the U.S. Department of Energy. The government has certain rights in the invention.