Improved morphological and barrier properties of lanthanum zirconium oxide buffer layers obtained by chemical solution deposition for coated conductors

2016 ◽  
Vol 27 (5) ◽  
pp. 4336-4343
Author(s):  
Y. Wang ◽  
C. S. Li ◽  
J. Q. Feng ◽  
Z. M. Yu ◽  
L. H. Jin ◽  
...  
Keyword(s):  
Zirconium Oxide ◽  
Chemical Solution Deposition ◽  
Barrier Properties ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Lanthanum Zirconium Oxide

Deposition of rare earth tantalate buffers on textured Ni-W substrates for YBCO coated conductor using chemical solution deposition approach

2006 ◽  
Vol 21 (3) ◽  
pp. 767-773 ◽  
Author(s):  
M.S. Bhuiyan ◽  
M. Paranthaman ◽  
A. Goyal ◽  
L. Heatherly ◽  
D.B. Beach
Keyword(s):  
Rare Earth ◽  
Chemical Solution Deposition ◽  
Precursor Solution ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Force Microscopy ◽  
Atomic Force ◽  
Ybco Coated Conductors

Epitaxial films of rare-earth (RE = La, Ce, Eu, and Gd) tantalates, RE3TaO7 with pyrochlore structures were grown on biaxially textured nickel-3 at.% tungsten (Ni-W) substrates using chemical solution deposition (CSD) process. Precursor solution of 0.3∼0.4 M concentration of total cations were spin coated on to short samples of Ni-W substrates and the films were crystallized at 1050∼1100 °C in a gas mixture of Ar- 4% H2 for 15 to 60 min. X-ray studies show that the films of pyrochlore RE tantalate films are highly textured with cube-on-cube epitaxy. Improved texture was observed in case of lanthanum tantalate (La3TaO7) film grown on Ni-W substrates. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) investigations of RE3TaO7 films reveal a fairly dense and smooth microstructure without cracks and porosity. The rare-earth tantalate layers may be potentially used as buffer layers for YBa2Cu3O7-δ (YBCO) coated conductors.

scholarly journals Chemical Solution Deposition of LaMnO$_{3}$ Buffer Layers for Coated Conductors

2007 ◽  
Vol 17 (4) ◽  
pp. 3880-3885 ◽  
Author(s):  
Xuebin Zhu ◽  
Hechang Lei ◽  
Dongqi Shi ◽  
Li Zhang ◽  
Lin Wang ◽  
...  
Keyword(s):  
Chemical Solution Deposition ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Chemical Solution ◽  
Solution Deposition

La2Zr2O7 and Ce–Gd–O buffer layers for YBCO coated conductors using chemical solution deposition

2005 ◽  
Vol 426-431 ◽  
pp. 979-984 ◽  
Author(s):  
Kerstin Knoth ◽  
Brigitte Schlobach ◽  
Ruben Hühne ◽  
Ludwig Schultz ◽  
Bernhard Holzapfel
Keyword(s):  
Chemical Solution Deposition ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Ybco Coated Conductors

scholarly journals Possible new single-buffer layers for YBa2Cu3O7−y coated conductors prepared by chemical solution deposition

2007 ◽  
Vol 22 (9) ◽  
pp. 2398-2403 ◽  
Author(s):  
Guo Li ◽  
Minghua Pu ◽  
Huaming Zhou ◽  
Xiaohua Du ◽  
Yanbing Zhang ◽  
...  
Keyword(s):  
Chemical Solution Deposition ◽  
Low Cost ◽  
Precursor Solution ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Yttrium Nitrate ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method ◽  
Heat Treated

New single-buffer layers of YBiO3 and SmBiO3 have been proposed for YBa2Cu3O7−y (YBCO) and SmBa2Cu3O7−y coated conductors. Highly c-axis oriented YBiO3 and SmBiO3 buffer layers have been deposited on single-crystal LaAlO3 and SrTiO3, respectively, by a low-cost chemical solution deposition method in a temperature range as low as 730 to 800 °C in air. Precursor solution of yttrium nitrate, samarium nitrate, and bismuth nitrate has been deposited using spin coating and heat treated in air in a single stage to yield textured YBiO3 and SmBiO3 buffers. A very dense, smooth, pinhole-free, and crack-free morphology has been observed for both buffers. Dense, homogeneous, and epitaxially grown YBCO film with thickness about 300 nm has been obtained on YBiO3 buffer with onset critical temperature 90 K and Jc (77 K, self-field) over 3 MA/cm2. These results offer an effective alternative to prepare desirable buffer layer(s) for YBCO-coated conductors.

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