TY - JOUR
T1 - Fabrication of YBCO thick films on Nd2CuO4 buffered Ni tapes by liquid phase epitaxy
AU - Qi, Xiaoding
AU - Soorie, Masood
AU - Lockman, Zainovia
AU - MacManus-Driscoll, Judith L.
N1 - Funding Information:
We are indebted to EPSRC of the UK for funding this work. Dr. W. Goldacker and Dr. R. Nast of Karlsruhe Forschungszentrum are acknowledged for provision of the (2 0 0) Ni foils. We would like to thank Prof. Don McK Paul and Dr. Geetha Balakrishana at Warwick University for providing crystal growth facilities for the development of a novel horizontal LPE process.
PY - 2002/8
Y1 - 2002/8
N2 - REBa2Cu3O7-δ (RE = rare earth, REBCO) thick films with Tcs of 91 K and Jcs over 1 MA/cm2 have successfully been grown on single crystal substrates by liquid phase epitaxy (LPE), with a fast growth rate of 1 μm/min. However, the growth of REBCO thick films on metallic substrate is much more difficult. There is an urgent need to find a suitable metallic substrate and its buffer layers, which can meet the special conditions of the LPE growth. We have developed a new buffer, Nd2CuO4, on surface oxidised Ni tape by a number of liquid-phase processing methods. The Nd2CuO4 buffer layers grown from liquid phase had excellent biaxial texture and a good surface smoothness suitable for subsequent REBCO growth. LPE growth of YBCO on such Nd2CuO4/NiO/Ni substrates showed that dense nucleation of YBCO on Nd2CuO4 was possible without any REBCO seed layer and there was little reaction between the Nd2CuO4 buffer and the high-temperature CuO:BaO solution.
AB - REBa2Cu3O7-δ (RE = rare earth, REBCO) thick films with Tcs of 91 K and Jcs over 1 MA/cm2 have successfully been grown on single crystal substrates by liquid phase epitaxy (LPE), with a fast growth rate of 1 μm/min. However, the growth of REBCO thick films on metallic substrate is much more difficult. There is an urgent need to find a suitable metallic substrate and its buffer layers, which can meet the special conditions of the LPE growth. We have developed a new buffer, Nd2CuO4, on surface oxidised Ni tape by a number of liquid-phase processing methods. The Nd2CuO4 buffer layers grown from liquid phase had excellent biaxial texture and a good surface smoothness suitable for subsequent REBCO growth. LPE growth of YBCO on such Nd2CuO4/NiO/Ni substrates showed that dense nucleation of YBCO on Nd2CuO4 was possible without any REBCO seed layer and there was little reaction between the Nd2CuO4 buffer and the high-temperature CuO:BaO solution.
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U2 - 10.1016/S0921-4534(02)00896-1
DO - 10.1016/S0921-4534(02)00896-1
M3 - Article
AN - SCOPUS:18844472988
SN - 0921-4534
VL - 372-376
SP - 742
EP - 746
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - PART 2
ER -