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Method of fabricating a (1223) Tl-Ba-Ca-Cu-O superconductor

United States Patent

5,646,097
July 8, 1997
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method is disclosed for fabricating a polycrystalline <223> thallium-containing superconductor having high critical current at elevated temperatures and in the presence of a magnetic field. A powder precursor containing compounds other than thallium is compressed on a substrate. Thallium is incorporated in the densified powder precursor at a high temperature in the presence of a partial pressure of a thallium-containing vapor.
Tkaczyk; John Eric (Delanson, NY), Lay; Kenneth Wilbur (Schenectady, NY), He; Qing (Knoxville, TN)
General Electric Company (Schenectady, NY)
08/ 573,602
December 15, 1995
This invention was made with the government support under Contract No. 87X-SE934V under DE-AC05-840R21400 awarded by the Department of Energy. The government has certain rights in this invention.