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High count restacks Nb3Sn using subelements with over 3000 A/mm2 non-Cu Jc at 12T and 4.2K

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-09ER85406
Agency Tracking Number: 91069
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 36 a
Solicitation Number: DE-FOA-0000350
Solicitation Year: 2010
Award Year: 2009
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1275 Kinnear Road
Columbus, OH 43212
United States
DUNS: 050264949
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 David Doll
 Mr. Doll
 (614) 481-8050
Business Contact
 Lawrence Walley
Title: Mr.
Phone: (614) 481-8050
Research Institution

Nb3Sn superconducting strands, used in magnets for high energy physics experiments, need to have smaller deft to be stable at lower fields. This means that the strands must be produced with a higher subelement restack count without wire breakage. This project will demonstrate higher subelement restack counts using subelements that have produced non-copper Jc¿s in the 3400 A/mm2 range at 12 T, and greater than 1800 A/mm2 at 15T when restacked with 61 sub elements. Phase I will fabricate strands that have 91, 127, and 217 sub elements in the restack. The strands will be characterized for current density, AC losses, and Relative Resistance Ratio of the strands. Commercial Applications and other Benefits as described by the awardee: The largest market for Nb3Sn is currently for accelerator and fusion magnets. For example, tons of strands are needed for the ITER project. Other commercial applications include high field MRI and NMR systems, proton radiation for cancer treatment, superconducting magnetic energy storage, and high field magnetic separation.

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

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