Accession Number : ADD013719

Title :   Substantially Single Phase Superconducting Oxide Ceramics having a Tc above 85 K and a Method of making the Ceramic.

Descriptive Note : Patent Application, Filed 22 Feb 88,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Quadri, Syed B ; Toth, Louis E ; Osofsky, Michael S ; Lawrence, Steven H ; Gubser, Donald U

Report Date : 22 Feb 1988

Pagination or Media Count : 26

Abstract : A substantially single phase superconducting composition is formed from a of 1:2:3 molar ratio of fine powders of a superconducting rare earth oxide, CuO, and BaCo3. The mixed powders and shaped articles formed from the mixed powders are calcined, sintered, and cooled in an oxygen containing atmosphere. The cooling step is done slowly to improve the superconducting properties. The article formed is a substantially single phase superconducting composition.

Descriptors :   *SUPERCONDUCTORS, *SUPERCONDUCTIVITY, *PATENT APPLICATIONS, *CERAMIC MATERIALS, FINE GRAINED MATERIALS, OXIDES, RARE EARTH COMPOUNDS, ELECTRON TRANSPORT, SYNTHESIS(CHEMISTRY), COPPER COMPOUNDS, BARIUM COMPOUNDS, CARBONATES, CRYSTAL STRUCTURE

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE