High critical current density superconducting tapes by epitaxial deposition of YBa2Cu3Ox thick films on biaxially textured metals

1996 ◽  
Vol 69 (12) ◽  
pp. 1795-1797 ◽  
Author(s):  
A. Goyal ◽  
D. P. Norton ◽  
J. D. Budai ◽  
M. Paranthaman ◽  
E. D. Specht ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Thick Films ◽  
Superconducting Tapes ◽  
High Critical Current Density ◽  
Epitaxial Deposition

Josephson behaviour for high critical current density YBCO+Ag thick films on YSZ substrates

1990 ◽  
Vol 167 (1-2) ◽  
pp. 133-138 ◽  
Author(s):  
A. Bailey ◽  
G. Alvarez ◽  
T. Puzzer ◽  
S.L. Town ◽  
G.J. Russell ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Thick Films ◽  
High Critical Current Density

scholarly journals Preparation and characterization of silver clad (Bi, Pb)-Sr-Ca-Cu-O 2223 superconducting tapes with high critical current density

1995 ◽  
Vol 18 (5) ◽  
pp. 517-529 ◽  
Author(s):  
U Syamaprasad ◽  
M S Sarma ◽  
A R Sheeja Nair ◽  
P Guruswamy ◽  
P S Mukherjee ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Superconducting Tapes ◽  
High Critical Current Density

High critical current density thick films of (YBaCuO): Ag obtained by melt processing

1991 ◽  
Vol 8 (3) ◽  
pp. 161-165 ◽  
Author(s):  
A. Bailey ◽  
G. Alvarez ◽  
T. Puzzer ◽  
K. Sealy ◽  
G.J. Russell ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Thick Films ◽  
Melt Processing ◽  
High Critical Current Density

Textured Sr1−xKxFe2As2 superconducting tapes with high critical current density

2011 ◽  
Vol 471 (23-24) ◽  
pp. 1689-1691 ◽  
Author(s):  
Lei Wang ◽  
Yanpeng Qi ◽  
Xianping Zhang ◽  
Dongliang Wang ◽  
Zhaoshun Gao ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Superconducting Tapes ◽  
High Critical Current Density

Evidence for Extensive Grain Boundary Meander and Overgrowth of Substrate Grain Boundaries in High Critical Current Density ex Situ YBa2Cu3O7−x Coated Conductors

2005 ◽  
Vol 20 (8) ◽  
pp. 2012-2020 ◽  
Author(s):  
D.M. Feldmann ◽  
D.C. Larbalestier ◽  
T. Holesinger ◽  
R. Feenstra ◽  
A.A. Gapud ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Critical Current Density ◽  
Film Thickness ◽  
Critical Current ◽  
Current Density ◽  
Thick Films ◽  
Coated Conductors ◽  
Ex Situ ◽  
High Critical Current Density ◽  
Ybco Films

It has been generally accepted that YBa2Cu3O7−x (YBCO) films deposited on deformation textured polycrystalline metal tapes result in YBCO grain boundary (GB) networks that essentially replicate the GBs of the underlying substrate. Here we report that for thicker YBCO films produced by a BaF2 ex situ process, this is not true. Using electron backscatter diffraction combined with ion milling, we have been able to map the evolution of the YBCO grain structure and compare it to the underlying template in several coated conductors. For thin (≤0.5 μm) YBCO films deposited on rolling-assisted biaxially textured substrates (RABiTS), the YBCO GBs nearly directly overlap the substrate GBs. For 0.7–1.4 μm YBCO films, the GBs were found to meander along the substrate GBs and along the sample normal, with displacements several times the film thickness. In very thick films (2.5–2.9 μm), the YBCO grains can completely overgrow substrate grains and GBs, resulting in a substantial disconnection of the YBCO and substrate GB networks. Similar behavior is found for BaF2 ex situ YBCO films on ion-beam-assisted deposition-type templates. The ability of the YBCO to overgrow substrate grains and GBs is believed to be due to liquid-phase mediated laminar grain growth. Although the behavior of the YBCO GB networks changes with YBCO film thickness, the samples maintained high critical current density (Jc) values of >2 MA/cm2 for films up to 1.4 μm thick, and up to0.9 MA/cm2 for 2.5–2.9-μm-thick films.

Epitaxial YBa2Cu3O7 on Biaxially Textured Nickel (001): An Approach to Superconducting Tapes with High Critical Current Density

Science ◽  
1996 ◽  
Vol 274 (5288) ◽  
pp. 755-757 ◽  
Author(s):  
D. P. Norton ◽  
A. Goyal ◽  
J. D. Budai ◽  
D. K. Christen ◽  
D. M. Kroeger ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Superconducting Tapes ◽  
High Critical Current Density
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