Title :
Preparation of unleaded BSCCO superconductor with critical temperatures of 110 K
Author :
Pryrkova, N.A. ; Tomilo, Z.M.
Author_Institution :
Inst. of Solid-State & Semicond. Phys., Acad. of Sci., Minsk, Byelorussia
fDate :
6/1/1999 12:00:00 AM
Abstract :
The results of the unleaded synthesis, and superconducting properties, and phase composition investigation of high-T/sub c/ superconductors obtained in the BiSrCaCuO (BSCCO system), when partially substituting copper oxide for copper are presented. Synthesized under special conditions, samples of BiSrCa((1-x)CuO+xCu))/sub 2/Oy with x=(0.2-0.3) revealed T/sub c/(R=0)=(102-107)K and consisted of the single superconducting phase Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub y/. The other impurity phases were not superconductors.
Keywords :
bismuth compounds; calcium compounds; high-temperature superconductors; materials preparation; stoichiometry; strontium compounds; superconducting transition temperature; BiSrCaCuO; critical temperature; high-T/sub c/ superconductors; impurity phases; melt quenching; phase composition; Bismuth compounds; Copper; Doping; High temperature superconductors; Lead; Oxidation; Superconducting devices; Superconducting epitaxial layers; Superconducting materials; Superconducting transition temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
