"A Cost Effective, Tube Extruded Nb3Sn Superconductor

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-08ER85226
Agency Tracking Number: 85774
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: 51 a
Solicitation Number: DE-PS02-07ER07-36
Small Business Information
830 Boston Turnpike Road, Shrewsbury, MA, 01545
DUNS: 065173049
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Charles Renaud
 (508) 842-0174
Business Contact
 Terence Wong
Title: Mr.
Phone: (508) 842-0174
Email: twong@supercon-wire.com
Research Institution
The high energy physics (HEP) community requires the development of superconducting wires for use in magnets generating magnetic fields greater than 12 T. Currently, Nb3Sn is the only commercially available superconductor capable of operating at such high fields. However, its technical and cost performance does not meet the demands for next generation magnets. This project will develop an economical process for the fabrication of Nb3Sn conductors that will meet the requirements. In particular, the Internal Tin (IT) process will be further developed to produce high performance ternary A15 superconducting wire for HEP applications. The process improvements consist of (1) developing tube extrusion as a cost effective route for fabricating multifilament sub-elements used in the IT process, and (2) the addition of a thin tantalum diffusion barrier around each individual sub-element, thereby removing any heat treatment constraints and maximizing current density. Commercial Applications and other Benefits as described by the awardee: High performance multifilamentary Nb3Sn should find applications in high energy physics particle accelerators and magnetic confinement fusion machines. Commercially, such a conductor should find application in high frequency NMR magnets, by taking advantage of the higher critical current density in order to reduce the size and overall cost of the magnet system.

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

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