Accession Number : ADD014656

Title :   Method of Producing Superconducting Materials in Bulk Form.

Descriptive Note : Patent Application, Filed 28 Feb 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Provenzano, V ; Imam, M S ; Sadananda, K ; Henshaw, W F

Report Date : 28 Feb 1990

Pagination or Media Count : 14

Abstract : Bulk form of superconducting materials are produced by pouring a melt a O2-containing superconducting material into a heated mold, cooling the mold until solidification begins, removing the cast object from the mold, gradually cooling the cast object to prevent the development of thermal stresses, and then annealing the cast, cooled object to restore O2 to near equilibrium levels. The bulk form produced according to the present invention may be used as a sputtering target in the production of wires, or as a bulk form semiconductor. Patent application. (jhd)

Descriptors :   *CASTING, *PATENT APPLICATIONS, *SUPERCONDUCTORS, ANNEALING, COOLING, EQUILIBRIUM(GENERAL), MATERIALS, MOLDS(FORMS), PRODUCTION, SOLIDIFICATION, SPUTTERING, THERMAL STRESSES, WIRE

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE