High Critical Current in Metal Organic Derived YBCO Films

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-07-C-0034
Agency Tracking Number: F054-009-0144
Amount: $750,000.00
Phase: Phase II
Program: STTR
Awards Year: 2007
Solitcitation Year: 2005
Solitcitation Topic Code: AF05-T009
Solitcitation Number: N/A
Small Business Information
AMERICAN SUPERCONDUCTOR
Two Technology Drive, Westborough, MA, 01581
Duns: 185904497
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Xiaoping Li
 Senior Technical Staff
 (508) 621-4189
 xli@amsuper.com
Business Contact
 Thomas Rosa
Title: V.P. and CFO
Phone: (508) 621-4265
Email: trosa@amsuper.com
Research Institution
 UNIV. OF WISCONSIN-MADISON
 Diane Barrett
 Applied Superconductivity Cent, 1500 Eng
Madison, WI, 53706
 (608) 262-0252
 Nonprofit college or university
Abstract
The Phase I STTR demonstrated major improvements in the deposition of high critical current YBCO films by a low-cost Metal Organic Deposition process on RABiTS substrates. A critical current of nearly 500 A/cm-width (77K, self-field) was achieved in a short length 2 m thick YBCO film, exceeding the Phase I goal of 450 A/cm-width. This performance is equivalent to a current of 200 A in an industry standard 4.4 mm wide Second Generation (2G) superconducting wire. To achieve this successful result, the Phase I program focused on the characterization and optimization of the nucleation/growth of thick YBCO films. The performance achieved in the Phase I program demonstrates the technical feasibility of manufacturing high-current, low-cost 2G superconducting wires required for critical military and commercial applications. The proposed Phase II Project will focus on further optimization of the thick YBCO film process, extending the YBCO thickness to > 2 m and transferring the thick film process into AMSC's pilot manufacturing process. The successful completion of the proposed Phase II Project will demonstrate the technology required for low-cost manufacturing of continuous lengths of 2G superconducting wire and provide initial lengths of 200A 2G superconducting wire for characterization and testing in critical military applications.

* information listed above is at the time of submission.

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