Skip to Content
Find More Like This
Return to Search

SUPERCONDUCTING WIRES AND METHODS OF MAKING THEREOF

United States Patent Application

20170062099
A1
View the Complete Application at the US Patent & Trademark Office
Disclosed herein are superconducting wires. The superconducting wires can comprise a metallic matrix and at least one continuous subelement embedded in the matrix. Each subelement can comprise a non-superconducting core, a superconducting layer coaxially disposed around the non-superconducting core, and a barrier layer coaxially disposed around the super-conducting layer. The superconducting layer can comprise a plurality of Nb.sub.3Sn grains stabilized by metal oxide particulates disposed therein. The Nb.sub.3Sn grains can have an average grain size of from 5 nm to 90 nm (for example, from 15 nm to 30 nm). The superconducting wire can have a high-field critical current density (J.sub.c) of at least 5,000 A/mm.sup.2 at a temperature of 4.2 K in a magnetic field of 12 T. Also described are superconducting 4 wire precursors that can be heat treated to prepare super-conducting wires, as well as methods of making super-conducting wires.
XU, Xingchen (Columbus, OH), SUMPTION, Michael D. (Newark, OH), PENG, Xuan (Dublin, OH)
15/ 119,831
February 18, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with government support under Grant No. DE-FG02-95ER40900 awarded by the United States Department of Energy and under Grant No. DE-SC0006250 awarded by the United States Department of Energy. The government has certain rights in this invention.