The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2008
Filed:
Apr. 19, 2006
Mark Gilbert Benz, Lincoln, VT (US);
Theodore Mccall Evenden, Pattersonville, NY (US);
Judson Sloan Marte, Wynantskill, NY (US);
Thomas Robert Raber, Schenectady, NY (US);
Mark Gilbert Benz, Lincoln, VT (US);
Theodore McCall Evenden, Pattersonville, NY (US);
Judson Sloan Marte, Wynantskill, NY (US);
Thomas Robert Raber, Schenectady, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain NbSn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium and oxygen in solid solution and heat treating the drawn wire in the presence of tin to yield at least one continuous filament comprising ultra-fine grain NbSn having semi-coherent ZrOprecipitates disposed therein. The ZrOprecipitates serve to stabilize the ultra-fine grain microstructure of the NbSn at temperatures up to 1100° C. and allows NbSn to maintain the ultra-fine grain microstructure when heat treated at temperatures that are greater than those previously used. By using higher temperatures to form NbSn, the time required for heat treatment can be significantly reduced.