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Ultrasonic Drawing of Advanced A15 Strand, Piece-Length Enhancement, Bonding, and Stabilizer Attachment

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-01ER83198
Agency Tracking Number: 65493S01-II
Amount: $600,000.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2002
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
110 E. Canal Street
Troy, OH 45373
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Florin Buta
 (937) 332-0348
Business Contact
 Michael Tomsic
Title: 65493
Phone: (937) 332-0348
Research Institution

65493 Future high field (15T+) dipole magnets will require higher performance superconductors, and long lengths will be needed to reduce the cost of these conductors. The A15-type conductors are the most likely superconductors to fulfill this need, but it is very difficult to process the wire without breaks, especially when billet sizes are increased to produce 5-25 km lengths. This processing difficulty is related to the hardness of the multifilamentary composite and the bonding of the filaments. This project will investigate an ultrasonic processing technique to reduce drawing forces and increase bonding between the filaments. Phase I demonstrated several ultrasonic wire drawing equipment designs. The ultrasonic drawing forces were shown to be as little as 55% less compared to the non-ultrasonic wire drawing A15 type superconductors. In addition, ultrasonic wire drawing was demonstrated for multi-filament composites, which was not possible with conventional conical dies. Phase II will design and build a high power ultrasonic wire drawing setup. The optimum ultrasonic wire drawing parameters, for preventing filament breakage and improving inter-filament bonding, will be determined for multi-filament A15 superconducting composites. Commercial Applications and Other Benefits as described by the awardee: Although the largest market should be for accelerator and fusion magnets, high field magnets (above 5 tesla) should also have applicability for MRI, NMR, high gradient magnetic separators, and SMES applications.

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

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