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Development of Textured Buffer Layer on Metal Tapes for Oxide Superconductors

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2002 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
UES, Inc.
4401 Dayton-Xenia Road Dayton, OH -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2002
Title: Development of Textured Buffer Layer on Metal Tapes for Oxide Superconductors
Agency / Branch: DOD / USAF
Contract: F49620-02-C-0106
Award Amount: $499,980.00


High current carrying conductors for various commercial and military applications can be fabricated by using a coating of high-temperature superconductor such as Yttrium-Barium-Copper-Oxide (YBCO) on a suitable metallic tape. It has been shown, however,that YBCO films deposited directly on polycrystalline metal substrates exhibit poor superconducting properties at liquid nitrogen temperature. A textured buffer layer on metal substrates is needed for the growth of YBCO films with a high critical currentdensity. In Phase I, UES has demonstrated the feasibility of growing highly textured MgO films on polycrystalline substrates using inclined substrate deposition (ISD) technique. A multilayer architecture incorporating ISD MgO layer on metal substratesexhibited optimum properties of the overlaying YBCO films. In Phase II, UES proposes to further optimize the multilayer architecture and develop a pilot production process for coating long metal tapes. A reel-to-reel sputter deposition system at UES willbe equipped with an electron beam evaporation source for this scale-up. Argonne National Laboratory and State University of New York, Albany will provide support in YBCO depositions and characterizations of coated conductors.

Principal Investigator:

Rabi S. Bhattacharya
Principal Research Scient

Business Contact:

Francis F. Williams
Contracts Manager
Small Business Information at Submission:

Ues, Inc.
4401 Dayton-Xenia Road Dayton, OH 45432

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Argonne National Laboratory
9700 South Cass Avenue, Building 212
Argonne, IL 60439
Contact: Roger B. Poeppel
Contact Phone: (630) 252-4930
RI Type: Federally funded R&D center (FFRDC)