The angular dependence of critical currents in Nb3Sn — Effect of some preparation conditions

1977 ◽  
Vol 27 (5) ◽  
pp. 571-576 ◽  
Author(s):  
S. Takács ◽  
D. Čabelka ◽  
V. Černuško ◽  
M. Jergel
Keyword(s):  
Angular Dependence ◽  
Critical Currents ◽  
Preparation Conditions

The angular dependence of critical currents in Nb3Sn — Effect of some preparation conditions I. Experimental and structural investigations

1977 ◽  
Vol 27 (4) ◽  
pp. 468-476 ◽  
Author(s):  
M. Jergel ◽  
D. čabelka ◽  
V. černuško ◽  
S. Takács ◽  
P. A. Cheremnykh ◽  
...  
Keyword(s):  
Angular Dependence ◽  
Critical Currents ◽  
Structural Investigations ◽  
Preparation Conditions

The angular dependence of Nb3Sn critical currents in transverse magnetic fields

1973 ◽  
Vol 23 (6) ◽  
pp. 644-651 ◽  
Author(s):  
M. Jergel ◽  
S. Takács ◽  
D. Čabelka ◽  
V. Černuško ◽  
J. KruŽliak
Keyword(s):  
Magnetic Fields ◽  
Angular Dependence ◽  
Transverse Magnetic ◽  
Critical Currents

Angular dependence of critical currents and grain misalignment in Ag clad (Bi,Pb)2Sr2Ca2Cu3O10 tapes

1995 ◽  
Vol 252 (3-4) ◽  
pp. 211-220 ◽  
Author(s):  
Q.Y. Hu ◽  
H.W. Weber ◽  
H.K. Liu ◽  
S.X. Dou ◽  
H.W. Neumüller
Keyword(s):  
Angular Dependence ◽  
Critical Currents

Angular dependence of critical currents across YBa2Ca3O7−δ low-angle grain boundaries

2007 ◽  
Vol 460-462 ◽  
pp. 1188-1189 ◽  
Author(s):  
K.R. Schöppl ◽  
H.W. Weber ◽  
J.H. Durrell
Keyword(s):  
Grain Boundaries ◽  
Angular Dependence ◽  
Critical Currents

Angular dependence of the critical currents in magnetic fields of superconducting/insulating Mo77Ge23/Ge multilayers

1994 ◽  
Vol 235-240 ◽  
pp. 2531-2532
Author(s):  
S. de Brion ◽  
W.R. White ◽  
A. Kapitulnik ◽  
M.R. Beasley
Keyword(s):  
Magnetic Fields ◽  
Angular Dependence ◽  
Critical Currents

Indications of flux pinning by chemical defects in 123

1990 ◽  
Vol 48 (4) ◽  
pp. 54-55
Author(s):  
D.J. Li ◽  
J.P. Zhang ◽  
L.C. Qin ◽  
L. D. Marks
Keyword(s):  
Thin Film ◽  
Flux Pinning ◽  
High Temperature Superconductors ◽  
Critical Currents ◽  
Specimen Preparation ◽  
Bulk Materials ◽  
Sharp Transition ◽  
Total Size ◽  
Preparation Conditions ◽  
Excess Copper

A problems with bulk high temperature superconductors for some time has been obtaining specimens which show high critical currents; typical critical currents in bulk materials lie in the range of 103 Amps/cm2 whereas thin film specimens now routinely reach the 106 Amps/cm2 range. There has recently been indications of higher critical currents in some materials, with suggestions that there is flux pinning by 1/3(301) type defects. We have previously studied in some detail bulk materials with excess copper that contain large number of such defects. In the light of the recent results, we have returned to these materials to study the critical current in addition to the structure.Details of the specimen preparation will be reported elsewhere. The key point is that with the correct preparation conditions, the bulk materials show a fairly sharp transition at 9IK and magnetization measurements indicate (reproducibly) a Jc of more than 106 at 4.5K, using the total size of the specimen and not a smaller grain size.

Field and Angular Dependence of Critical Currents inNb3Sn

1963 ◽  
Vol 132 (2) ◽  
pp. 577-580 ◽  
Author(s):  
G. W. Cullen ◽  
G. D. Cody ◽  
J. P. McEvoy
Keyword(s):  
Angular Dependence ◽  
Critical Currents
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