Title :
Silver sheathed BiSrCaCuO base conductors
Author :
Nikulin, A.D. ; Shikov, A.K. ; Khlebova, N.E. ; Antipova, E.V. ; Burikov, M.V. ; Shishov, V.N. ; Kozlenkova, N.I. ; Medkov, V.V. ; Chernoplekov, N.A. ; Klimenko, E.J. ; Kurglov, V.S.
Author_Institution :
A.A. Bochvar´´s All Union Sci. Res. Inst. of Inorg. Mater., Moscow, Russia
fDate :
1/1/1992 12:00:00 AM
Abstract :
Silver-sheathed Bi2Sr2Ca1Cu2 Ox tapes were fabricated through the powder-in-tube method. By means of a one-step isothermal heat-treatment, critical current densities of a technical level could be achieved at 4.2 K: 7.8×104 A/cm2 in a zero magnetic field and more than 104 A/cm2 up to fields of 20 T. The correlation between structural features of the 2212 phase such as the lattice parameter, the degree of texturing, the grain morphology, and the critical characteristics of the tapes was investigated. The prospects of future enhancement of Jc are discussed
Keywords :
annealing; bismuth compounds; calcium compounds; ceramics; critical current density (superconductivity); high-temperature superconductors; lattice constants; powder technology; strontium compounds; texture; 2212 phase; 4 to 20 T; Bi2Sr2Ca1Cu2Ox ; Bi2Sr2CaCu2Ox-Ag; annealing temperature; critical characteristics; critical current densities; degree of texturing; grain morphology; lattice parameter; one-step isothermal heat-treatment; powder-in-tube method; structural features; Annealing; Bismuth; Conductors; Critical current density; Heat treatment; Magnetic fields; Powders; Silver; Solids; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
