Film thickness dependence of critical current density for YBa2Cu3O7 films post-annealed at a low oxygen partial pressure

1993 ◽  
Vol 6 (1) ◽  
pp. 37-41 ◽  
Author(s):  
A. Mogro-Campero ◽  
L. G. Turner
Keyword(s):  
Critical Current Density ◽  
Film Thickness ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Critical Current ◽  
Current Density ◽  
Thickness Dependence ◽  
Low Oxygen

Textured YBaCuO Films Enhanced by Cold Rolling and Melt Growth Process in Low Oxygen Partial Pressure

2005 ◽  
Vol 105 ◽  
pp. 453-458 ◽  
Author(s):  
J. Wang ◽  
N. Maloufi ◽  
Xiang Xin Xue ◽  
Z.G. Fan ◽  
Claude Esling
Keyword(s):  
Critical Current Density ◽  
Cold Rolling ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Critical Current ◽  
Current Density ◽  
Control Sample ◽  
Secondary Phase ◽  
Low Oxygen ◽  
Texture Orientation

High critical current density Jc under high magnetic field is required in numerous applications for high temperature superconductor YBa2Cu3O7-δ (Y123). Significant efforts have been made to control sample preparation in view of optimized textures and microstructures. In YBa2Cu3O7-δ superconductor, Jc is limited by grain misalignment and by other defaults like secondary phase (Y211), microcracks... So YBaCuO films were prepared by electrophoretic deposition directly on polycrystalline Ag substrate. Melt textured growth (MTG) in low oxygen partial pressure and cold rolling were performed to YBaCuO samples respectively to improve texture growth of the films and to study deformation effect on the texture. The film obtained by melted growth after rolling has better texture orientation than the film without rolling, and presents higher critical current density.

AgO Doped YBa2Cu4O8 Superconductor Under High Oxygen Partial Pressure

1991 ◽  
Vol 251 ◽  
Author(s):  
Yuichi Sawai ◽  
K. Ishizaki ◽  
M. Takata ◽  
A. Kuzjukevics
Keyword(s):  
Critical Temperature ◽  
Critical Current Density ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Critical Current ◽  
Current Density ◽  
High Oxygen ◽  
Silver Doping ◽  
High Oxygen Partial Pressure ◽  
Pressing Method

ABSTRACTGeneraly silver doping into YBa2Cu3O7 superconductor improves the critical temperature and critical current density. In this work the silver peroxide was doped into YBa2Cu4O8 superconductor and sintered by the Oxygen Hot Isostatically Pressing method. The critical temperature of the 124 phase increased by silver peroxide doping.

Film thickness dependence of critical current density and microstructure for epitaxial YBa2Cu3O7-xfilms

1990 ◽  
Vol 3 (2) ◽  
pp. 62-66 ◽  
Author(s):  
A Mogro-Campero ◽  
L G Turner ◽  
E L Hall ◽  
N Lewis ◽  
L A Peluso ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Film Thickness ◽  
Critical Current ◽  
Current Density ◽  
Thickness Dependence
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