Epitaxial Growth Of Y2O3 On Biaxially Textured Ni Tapes Using A Sol-Gel Process For YBCO Coated Conductors

2007 ◽  
Author(s):  
L. Ciontea ◽  
T. Ristoiu ◽  
R.-C. Suciu ◽  
T. Petrisor
Keyword(s):  
Epitaxial Growth ◽  
Sol Gel ◽  
Coated Conductors ◽  
Sol Gel Process ◽  
Ybco Coated Conductors

Epitaxial Growth of Sr0.3Ba0.7Nb2O6 Thin Films Prepared by Sol-Gel Process

1999 ◽  
Vol 606 ◽  
Author(s):  
Keishi Nishio ◽  
Jirawat Thongrueng ◽  
Yuichi Watanabe ◽  
Toshio Tsuchiya
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Epitaxial Growth ◽  
Raw Materials ◽  
Substrate Surface ◽  
Sol Gel ◽  
Tungsten Bronze ◽  
Monomethyl Ether ◽  
Tetragonal Tungsten Bronze ◽  
Sol Gel Process

AbstructWe succeeded in the preparation of strontium-barium niobate (Sr0.3Ba0.7Nb2O6 : SBN30)that have a tetragonal tungsten bronze type structure thin films on SrTiO3 (100), STO, or La doped SrTiO3 (100), LSTO, single crystal substrates by a spin coating process. LSTO substrate can be used for electrode. A homogeneous coating solution was prepared with Sr and Ba acetates and Nb(OEt)5 as raw materials, and acetic acid and diethylene glycol monomethyl ether as solvents. The coating thin films were sintered at temperature from 700 to 1000°C for 10 min in air. It was confirmed that the thin films on STO substrate sintered above 700°C were in the epitaxial growth because the 16 diffraction spots were observed on the pole figure using (121) reflection. The <130> and <310> direction of the thin film on STO were oriented with the c-axis in parallel to the substrate surface. However, the diffraction spots of thin film on LSTO substrate sintered at 700°C were corresponds to the expected pattern for (110).

Sol–gel deposition of high-performance Re0.2Ce0.8O2/La2Zr2O7 composite buffer layers on Ni–W tapes for YBCO coated conductors

2015 ◽  
Vol 77 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Weibai Bian ◽  
Yuanqing Chen ◽  
Xinni Tang ◽  
Weihua Zhang ◽  
Gaoyang Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Sol Gel ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Ybco Coated Conductors

Epitaxial growth of La2Zr2O7 thin films on rolled Ni-substrates by sol–gel process for high Tc superconducting tapes

2000 ◽  
Vol 336 (1-2) ◽  
pp. 63-69 ◽  
Author(s):  
T.G Chirayil ◽  
M Paranthaman ◽  
D.B Beach ◽  
D.F Lee ◽  
A Goyal ◽  
...  
Keyword(s):  
Thin Films ◽  
Epitaxial Growth ◽  
Sol Gel ◽  
Superconducting Tapes ◽  
High Tc ◽  
Sol Gel Process

Lanthanum zirconate: A single buffer layer processed by solution deposition for coated conductor fabrication

2002 ◽  
Vol 17 (9) ◽  
pp. 2181-2184 ◽  
Author(s):  
S. Sathyamurthy ◽  
M. Paranthaman ◽  
H-Y. Zhai ◽  
H. M. Christen ◽  
P. P. Martin ◽  
...  
Keyword(s):  
Buffer Layer ◽  
Low Cost ◽  
Sol Gel ◽  
Single Layer ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Solution Deposition ◽  
Sol Gel Process ◽  
Current Densities ◽  
First Time

A single layer of La2Zr2O7 (LZO), deposited on textured Ni and Ni–1.7% Fe–3% W (Ni–W) tapes by a low-cost sol-gel process, is used as buffer layer for the growth of YBa2Cu3O7−δ (YBCO) coated conductors. It is shown for the first time that such single buffer layers can be used for the deposition of YBCO yielding critical current densities (Jc) that are comparable to those typically obtained using CeO2/YSZ/Y2O2 trilayers on identical substrates, i.e., in excess of 1 MA/cm2 at 77 K and self-field. The properties of the YBCO films and the dependence of Jc on thickness of the LZO layer are investigated.

Textured buffer layers for YBCO coated conductors by continuous sol-gel processing

2001 ◽  
Vol 11 (1) ◽  
pp. 2889-2892 ◽  
Author(s):  
H. Okuyucu ◽  
E. Celik ◽  
M.K. Ramazanoglu ◽  
Y. Akin ◽  
I.H. Mutlu ◽  
...  
Keyword(s):  
Sol Gel ◽  
Coated Conductors ◽  
Buffer Layers ◽  
Gel Processing ◽  
Ybco Coated Conductors

Solution Processing of YBa2Cu3OT7-x Thin Films

1997 ◽  
Vol 495 ◽  
Author(s):  
A. Singhal ◽  
M. Paranthaman ◽  
E. D. Specht ◽  
R. D. Hunt ◽  
D. B. Beach ◽  
...  
Keyword(s):  
Sol Gel ◽  
Chemical Deposition ◽  
Coated Conductors ◽  
Superconducting Transition ◽  
Axis Orientation ◽  
Ybco Films ◽  
Metal Organic ◽  
Yttrium Isopropoxide ◽  
Oriented Material ◽  
Ybco Coated Conductors

ABSTRACTThe aim of this work was to develop a non-vacuum chemical deposition technique for YBa2Cu3O7-x (YBCO) coated conductors on rolling-assisted biaxially textured substrates (RABiTS). We have chosen the metal-organic decomposition (MOD) and sol-gel precursor routes to grow textured YBCO films. In the MOD process, yttrium 2-ethylhexonate, barium neodecanoate, copper 2-ethylhexonate and toluene were used as the starting reagents. YBCO films processed by the MOD method on SrTiO3 (100) single crystal substrates were predominately epitaxial and consisted of c and a-axis oriented material. Films have a TC,onset of 89K and the best superconducting transition temperature of 63K. Films pyrolyzed at 525 °C and subsequently annealed at 780 °C in P(O2) of 3.5 × 10−4 atm contained YBCO phase predominately in a-axis orientation. In the sol-gel route, yttrium-isopropoxide, barium metal, copper methoxide and 2-methoxyethanol were used as the starting reagents. Sol-gel YBCO films on SrTiO3 substrates were epitaxial and c-axis oriented.

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