scholarly journals Description of the transport critical current density behavior of polycrystalline superconductors as a function of the applied magnetic field

2009 ◽  
Vol 404 (19) ◽  
pp. 3123-3126 ◽  
Author(s):  
C.A.C. Passos ◽  
M.T.D. Orlando ◽  
G.L.L. Keller ◽  
J.L. Passamai ◽  
J.A. Ferreira ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Applied Magnetic Field ◽  
Transport Critical Current Density ◽  
Density Behavior ◽  
Polycrystalline Superconductors

ENHANCEMENT OF TRANSPORT CRITICAL CURRENT DENSITY IN NANO Cr2O3 ADDED Ag-SHEATHED (Bi1.6Pb0.4)Sr2Ca2Cu3O10 SUPERCONDUCTOR TAPES

2010 ◽  
Vol 24 (28) ◽  
pp. 5625-5634
Author(s):  
W. KONG ◽  
R. ABD-SHUKOR
Keyword(s):  
Magnetic Field ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Applied Magnetic Field ◽  
Applied Field ◽  
Transport Critical Current Density ◽  
Force Density ◽  
Pinning Force ◽  
Ray Patterns

Ag -sheathed ( Bi 1.6 Pb 0.4) Sr 2 Ca 2 Cu 3 O 10( Bi –2223) high temperature superconductor tapes with 0.1 wt% nano Cr 2 O 3 were fabricated using the powder-in-tube method. The effects of intermediate rolling and sintering temperature on the transport critical current density (Jc) under self-field and applied magnetic field were studied. The X-ray patterns showed a dominant Bi –2223 phase (~80%). A decrease in Jc in applied magnetic field, parallel or perpendicular to the sample wide surface was observed for all tapes. Intermediate rolling improved the self-field Jc(T=77 K ) of the tapes by 25%. Both Jc versus applied field curves and normalized pinning force density Fp/Fp max versus applied field curves showed that the pinning strength was significantly enhanced with thermo-mechanical treatments. SEM micrographs showed improvements in the grain alignment of tapes with intermediate rolling. Enhancement in Jc was observed in the nano Cr 2 O 3 added tapes.

Electric, magnetic, and transport critical current density behavior of the 2201, 2212, and 2223 phases of ?BSCCO?

1989 ◽  
Vol 2 (3) ◽  
pp. 387-394
Author(s):  
G. Balestrino ◽  
U. Gambardella ◽  
M. Marinelli ◽  
A. Paoletti ◽  
P. Paroli ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Transport Critical Current Density ◽  
Density Behavior

Effect of magnetic field on d.c. transport critical current density in grain orientated YBaCuO

Cryogenics ◽  
1990 ◽  
Vol 30 (7) ◽  
pp. 606-610 ◽  
Author(s):  
T.L. Francavilla ◽  
V. Selvamanickam ◽  
K. Salama ◽  
D.H. Liebenberg
Keyword(s):  
Magnetic Field ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Transport Critical Current Density
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