High Critical Current in Metal Organic Derived YBCO Films

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-05-C-0077
Agency Tracking Number: F054-009-0144
Amount: $100,000.00
Phase: Phase I
Program: STTR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: AF05-T009
Solicitation 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
 Principal Scientist
 (508) 621-4189
 xli@amsuper.com
Business Contact
 Tom Rosa
Title: V.P., Finance and Accounting
Phone: (508) 621-4265
Email: trosa@amsuper.com
Research Institution
 UNIV. OF WISCONSIN-MADISON
 Dianne Barrett
 Applied Superconductivity Cent, 1500 Engineering Drive
Madison, WI, 53706
 (608) 262-3822
 Nonprofit college or university
Abstract
Second Generation (2G) High Temperature Superconducting (HTS) wire based on the YBCO coated conductor is being developed for new military and commercial applications not accessible to First Generation (1G) HTS wires. Although a critical current (Ic) of nearly 300A/cm-w (77K, sf) has been obtained in 10-meter lengths of 2G conductors, significant improvement in the Ic of practical conductors is required before they are useful for the targeted applications. We propose in this Phase I program to demonstrate a scalable, thick-film MOD technology to achieve Ic's >450A/cm-w (77K. sf) in practical 2G conductors. Our approach is based on understanding of the relationship between film properties, microstructure and processing. During the Phase I program, the through thickness properties of the YBCO will analyzed and used to optimize precursor and processing conditions. The proposed program will focus on producing YBCO films with Ic's >450 A/cm-w (77K, sf) and >150A/cm-w (65K, 3T) using materials, processes, and equipment compatible with AMSC's 2G manufacturing line. The Phase II program will focus on: (1) incorporation of the high Ic, technology into AMSC's 2G pilot manufacturing facility and (2) the manufacture and delivery of high Ic 2G wire for testing and demonstrating in critical military applications.

* information listed above is at the time of submission.

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