Development of High Jc Thick YBCO Films Through MOD Process with Pinning Center Enhancement

Award Information
Agency:
Department of Defense
Branch:
Air Force
Amount:
$99,948.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-05-M-2510
Agency Tracking Number:
O043-EP6-1008
Solicitation Year:
2004
Solicitation Topic Code:
OSD04-EP6
Solicitation Number:
2004.3
Small Business Information
UES, INC.
4401 Dayton-Xenia Road, Dayton, OH, 45432
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
074689217
Principal Investigator
 Yongli Xu
 Research Scientist
 (937) 426-6900
 yxu@ues.com
Business Contact
 Francis Williams, Jr.
Title: Contracts Manager
Phone: (937) 426-6900
Email: fwilliams@ues.com
Research Institution
N/A
Abstract
YBCO film through MOD approach is one of the most cost effective methods for long length CC fabrications. Although, this process has shown success on films below 1 micron, thicker films with performance goal of 500 A/cm have not been demonstrated even on small samples. Increasing Ic through further improving Jc is not viable because the present Jcs are comparable to that of the intragrain Jc, which is believed to be theoretical limit of YBCO superconductors. Thicker films of 1-3 microns through MOD approach with pinning center enhancement are yet to be fully developed to attain a higher Ic. High-density nano scale pinning centers is the only way to keep Jc from dramatic degradation for thick films. Thus, in Phase I, we propose to increase thickness while keeping Jc from degradation for higher Ic. Technical approach including thicker film fabrication and introducing high density nano size pinning centers for the MOD YBCO films on both IBAD and ISD templates are designed. By reaction and growth control, thicker films with high density, uniformly distributed small non-superconducting second phase as pinning centers are expected.

* information listed above is at the time of submission.

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