scholarly journals Effects of Nb concentration on the critical current densities and hysteresis losses of Powder-Metallugy processed Nb3Sn superconducting wires

1995 ◽  
Vol 115 (3) ◽  
pp. 194-200
Author(s):  
Narikazu Matsukura ◽  
Takayoshi Miyazaki ◽  
Yasuhiko Inoue ◽  
Takayuki Miyatake ◽  
Masao Shimada ◽  
...  
Keyword(s):  
Critical Current ◽  
Hysteresis Losses ◽  
Superconducting Wires ◽  
Current Densities

Critical current densities and magnetic hysteresis losses in submicron filament bronze-processed Nb/sub 3/Sn wires

1991 ◽  
Vol 27 (2) ◽  
pp. 2403-2406 ◽  
Author(s):  
K. Kamata ◽  
S. Sakai ◽  
K. Tachikawa ◽  
T. Taniguchi ◽  
T. Ajioka ◽  
...  
Keyword(s):  
Critical Current ◽  
Magnetic Hysteresis ◽  
Hysteresis Losses ◽  
Current Densities

scholarly journals Critical Current Densities in AgCu Alloy-Sheathed Bi-2212 Superconducting Wires in Round Shape

2004 ◽  
Vol 68 (9) ◽  
pp. 661-667
Author(s):  
Tsuneo Kuroda ◽  
Takayuki Nakane ◽  
Hiroaki Kumakura ◽  
Yoshifumi Suga ◽  
Kuniaki Miura
Keyword(s):  
Critical Current ◽  
Superconducting Wires ◽  
Round Shape ◽  
Current Densities

Critical current densities and magnetic hysteresis losses in submicron filament bronze-processed Nb/sub 3/Sn wires

1993 ◽  
Vol 3 (1) ◽  
pp. 990-993 ◽  
Author(s):  
S. Sakai ◽  
K. Miyashita ◽  
K. Kamata ◽  
K. Endoh ◽  
K. Tachikawa ◽  
...  
Keyword(s):  
Critical Current ◽  
Magnetic Hysteresis ◽  
Hysteresis Losses ◽  
Current Densities

scholarly journals Dependence of critical current densities in Chevrel phase superconducting wires on magnetic fields up to 25 T

1995 ◽  
Vol 211 (1-4) ◽  
pp. 272-274 ◽  
Author(s):  
A. Gupta ◽  
N. Cheggour ◽  
M. Decroux ◽  
J.A.A.J. Perenboom ◽  
V. Bouquet ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Critical Current ◽  
Superconducting Wires ◽  
Chevrel Phase ◽  
Current Densities

Facet Topography and Dislocation Structure as a Possible Source for Electrical Heterogeneity in [001] TILT Bicrystals of YBa2Cu3O7-δ

1996 ◽  
Vol 54 ◽  
pp. 338-339
Author(s):  
I-Fei Tsu ◽  
D.L. Kaiser ◽  
S.E. Babcock
Keyword(s):  
Grain Boundary ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Electromagnetic Properties ◽  
Length Scale ◽  
Density Values ◽  
Current Densities ◽  
Applied Fields ◽  
A Current

A current theme in the study of the critical current density behavior of YBa2Cu3O7-δ (YBCO) grain boundaries is that their electromagnetic properties are heterogeneous on various length scales ranging from 10s of microns to ˜ 1 Å. Recently, combined electromagnetic and TEM studies on four flux-grown bicrystals have demonstrated a direct correlation between the length scale of the boundaries’ saw-tooth facet configurations and the apparent length scale of the electrical heterogeneity. In that work, enhanced critical current densities are observed at applied fields where the facet period is commensurate with the spacing of the Abrikosov flux vortices which must be pinned if higher critical current density values are recorded. To understand the microstructural origin of the flux pinning, the grain boundary topography and grain boundary dislocation (GBD) network structure of [001] tilt YBCO bicrystals were studied by TEM and HRTEM.

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