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INCREASING CRITICAL CURRENT DENSITIES IN HIGH-TC SUPERCONDUCTORS

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
11938
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
11938
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
CASTLE TECHNOLOGY CORP.
P.O. Box 5 Lexington, MA 02420
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: INCREASING CRITICAL CURRENT DENSITIES IN HIGH-TC SUPERCONDUCTORS
Agency: NASA
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

RECENT ADVANCES IN HIGH TEMPERATURE SUPERCONDUCTIVITY BROUGHT A NEW EXCITEMENT TO PHYSICAL SCIENTISTS THROUGHOUT THE WORLD. THIS EXCITEMENT HAS BEEN TEMPERED BY THE REALIZATION THAT DIFFICULT PROBLEMS NEED TO BE SOLVED BEFOREEXTENSIVE PRACTICAL USE CAN BE MADE OF THESE REVOLUTIONARY DISCOVERIES. FOREMOST AMONG THESE PROBLEMS, AND THE ONE WHICH IS ADDRESSED IN THIS PROPOSAL, IS THE ABILITY TO ACHIEVE ADEQUATE CURRENT DENSITIES IN MODERATE MAGNETIC FIELDS IN THE HIGH-T MATERIALS. THE MAJOR SOURCE OF THE "WEAK LINK" BEHAVIOR IN POLYCRYSTALLINE MATERIALS IS POOR INTER-GRAIN CONTACTS. WE SEEK TO LARGELY ELIMINATE THESE WEAK LINK INTER-GRAIN CONTACTS BY PRODUCING A NOVEL MORPHOLOGY WHEREIN THE GRAIN BOUNDARY COMPOSITION IS MODIFIED BY THE PRESENCE OF NANOMETER FILMS OF SILVER.

Principal Investigator:

J. Paul Pemsler
President
6179335634

Business Contact:

J. paul pemsler
PRESIDENT
6179335634
Small Business Information at Submission:

Castle Technology Corp.
P.o. Box 5 Lexington, MA 02173

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No