Preparation and Performance of the Sm0.2Ce0.8O1.9-x Single Buffer Layer Fabricated with Dip-Coating

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Preparation and Performance of the Sm0.2Ce0.8O1.9-x Single Buffer Layer Fabricated with Dip-Coating
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                        Lei MingLei Ming
Key Laboratory of Magnetic Levitation and Maglev Trains, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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Wang WentaoWang Wentao
Key Laboratory of Magnetic Levitation and Maglev Trains, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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Pu MinghuaPu Minghua
Key Laboratory of Magnetic Levitation and Maglev Trains, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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He LongjianHe Longjian
Key Laboratory of Magnetic Levitation and Maglev Trains, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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Cheng CuihuaCheng Cuihua
University of New South Wales, Sydney 2052, Australia
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Zhao YongZhao Yong
Key Laboratory of Magnetic Levitation and Maglev Trains, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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Fund Project:Fundamental Research Funds for the Central Universities of China (SWJTU09ZT24, SWJTU09BR153, SWJTU09CX055, SWJTU11ZT16, SWJTU11ZT31); National Natural Science Foundation (50872116, 51072168, 51102199, 51202202, 51271155); the PCSIRT of the Ministry of Education of China (IRT0751); the Specialized Research Fund for the Doctoral Program of Higher Education (200806130023); National Magnetic Confinement Fusion Science Program (2011GB112001); Program of International S&T Cooperation (S2013ZR0595); Science Foundation of Sichuan Province (2011JY0031, 2011JY0130)

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Abstract:

An epitaxial Sm0.2Ce0.8O1.9-x (SCO) single buffer layer with thickness of about 250 nm has been deposited via dip-coating polymer-assisted chemical solution deposition (PACSD) approach for YBCO coated conductors on bi-axially textured Ni-5%W (200) alloy substrate. Flat, crack-free SCO films with sharp (200) c-axis orientation and texture have been obtained by carefully controlling the concentration of precursor solution, withdrawing speed, annealing temperature and dwelling time. Leaving other three factors unchanged, focuses on the influence of different withdrawing speeds on the performance of the SCO buffer layer has been focused on. YBCO superconducting layer has been deposited equally via dip-coating PACSD approach on the SCO-buffered NiW, showing a bi-axially texture. Micro-structural investigations revealed a homogeneous surface structure. Both of these indicate that SCO single buffer layer can function well as template. The approach has shown a promising way to fabricate long-length, low-cost YBCO coated conductors.

Key words:Sm0.2Ce0.8O1.9-x(SCO); polymer-assisted chemical solution deposition (PACSD); dip-coating

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[Lei Ming, Wang Wentao, Pu Minghua, He Longjian, Cheng Cuihua, Zhao Yong. Preparation and Performance of the Sm0.2Ce0.8O1.9-x Single Buffer Layer Fabricated with Dip-Coating[J]. Rare Metal Materials and Engineering,2013,42(2):227~231.]
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Received:March 08,2012
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