THIN CONDUCTIVE FILMS FOR DIFFUSION BARRIERS AND CONTACTS TO STABILIZE YBA(2)CU(3)O(7) SUPERCONDUCTORS

Award Information
Agency:
Department of Defense
Branch:
Army
Amount:
$52,705.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
9136
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Spire Corp
Patriots Pk, Bedford, MA, 01730
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 DR ANTON GREENWALD
 (617) 275-6000
Business Contact
Phone: () -
Research Institution
N/A
Abstract
NEW CERAMIC POLYCRYSTALLINE SUPERCONDUCTING MATERIALS SUCH AS YBA(2)CU(3)O(7) ARE NOT STABLE, SHOWING BOTH LOSS OF OXYGEN AND RAPID DEGRADATION OF PROPERTIES IN AIR AS CHEMICAL REATIONS REMOVE BARIUM FROM THE TRINARY METAL OXIDE CRYSTAL LATTICE, CREATING MORESTABLE BINARY METAL OXIDE COMPOUNDS. THE PROPOSED RESEARCH WOULD EXAMINE THIN CONDUCTIVE FILMS KNOWN TO ACT AS DIFFUSION BARRIERS AND DETERMINE THE FEASIBILITY OF USING THEM TO STABILIZE THE 1-2-3 COMPOUNDS. SPECIFIC MATERIALS ARE SUGGESTED IN PROPRIETARY SECTIONS OF THIS PROPOSAL. THE BARRIER WOULD BE DEPOSITED UPON A SUBSTRATE, THEN A THIN FILM OF YBA(2)CU(3)O(7) WOULD BE DEPOSITED, THEN ANOTHER BARRIER LAYER. THE TIME REQUIRED FOR SUPERCONDUCTING PROPERTIES TO DEGRADE, WHEN COMPARED TO UNCOATED OR SILVER COATED MATERIALS, WOULD DETERMINE THE FEASIBILITY OF THIS APPROACH USING THE SUGGESTED COMPOUNDS. OTHER PROPERTIES, SUCH AS CONTACT RESISTANCE AND ADHERENCE WOULD ALSO BE MEASURED.

* information listed above is at the time of submission.

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