低成本电化学法制备RE2Zr2O7缓冲层

doi:10.3724/SP.J.1077.2012.12028

无机材料学报 ›› 2012, Vol. 27 ›› Issue (11): 1191-1196.DOI: 10.3724/SP.J.1077.2012.12028

低成本电化学法制备RE₂Zr₂O₇缓冲层

蔡增辉, 刘志勇, 鲁玉明, 蔡传兵

(上海大学超导及应用技术研究中心, 上海200444)

收稿日期:2012-01-11 修回日期:2012-02-22 出版日期:2012-11-20 网络出版日期:2012-10-25
作者简介:蔡增辉(1986–), 男, 硕士研究生. E-mail: caizenghui@yeah.net
基金资助:
科技部项目(2011CBA00105, 2009AA03Z204); 上海市科委项目(11dz1100300, 10dz1203500)

Fabricating RE₂Zr₂O₇ Buffer Layers by Low Cost Electrodeposition

CAI Zeng-Hui, LIU Zhi-Yong, LU Yu-Ming, CAI Chuan-Bing

(Research Center for Superconductors and Applied Technologies, Shanghai University, Shanghai 200444, China)

Received:2012-01-11 Revised:2012-02-22 Published:2012-11-20 Online:2012-10-25
About author:CAI Zeng-Hui. E-mail: caizenghui@yeah.net
Supported by:
Foundation of Ministry of Science and Technology of China (2011CBA00105, 2009AA03Z204); Foundation of Science and Technology Commission of Shanghai Municipality (11dz1100300, 10dz1203500)

摘要/Abstract

摘要： 为了降低第二代高温超导涂层导体的制备成本, 采用电化学法(ED), 在双轴织构的Ni-5at%W (Ni-5W)金属基带上分别成功制备出了具有较好c轴取向的La₂Zr₂O₇(LZO)和Gd₂Zr₂O₇(GZO)缓冲层. 通过与磁控溅射方法(MS)相结合, 制备出MS-CeO₂/ED-RE₂Zr₂O₇双层结构, 用以取代完全用磁控溅射方法(MS)制备的多层缓冲层结构. 电化学法得到的 60 nm LZO缓冲层的面内和面外织构半高宽分别为7.2°和6.8°, 同样厚度的GZO缓冲层的面内和面外半高宽分别为6.7°和5.8°. 之后用脉冲激光沉积(PLD)在ED-LZO/Ni-5W, ED-GZO/Ni-5W, MS-CeO₂/ED-LZO/Ni-5W 三种结构的缓冲层上分别制备出具有超导性能的YBa₂Cu₃O_7-δ (YBCO)超导层.

关键词: YBCO, 缓冲层, 电化学, 双轴织构

Abstract: Electrodeposition (ED), a novel and low cost method for epitaxial growth of La₂Zr₂O₇ (LZO) and Gd2Zr2O7 (GZO) buffer layers on the biaxially textured Ni-5at%W (Ni-5W) substrate, was successfully developed to reduce the production cost of the second generation high temperature coated conductors. Combined with magnetron sputtering (MS) method, the architecture of MS-CeO2/ED-RE₂Zr₂O₇ was obtained to replace the multilayers deposited only by MS system. Using electrodeposition, the full-width at half maximum (FWHM) values of phi (Ф) scans (in-plane texture) and omega (ω) scans (out-of plane texture) are 7.2° and 6.8°, respectively, for a typical LZO layer with 60 nm thickness. The corresponding values are 6.7° and 5.8° for 60 nm-thick GZO layers fabricated by the same method. YBa₂Cu₃O_7-δ (YBCO) films with superconducting transitions are subsequently obtained on ED-LZO/Ni-5W, ED-GZO/Ni-5W and MS-CeO2/ED-LZO/Ni-5W structures by using pulsed-laser deposition (PLD) system.

Key words: YBCO, buffer layer, electrodeposition, biaxial texture

中图分类号:

O511

蔡增辉, 刘志勇, 鲁玉明, 蔡传兵. 低成本电化学法制备RE₂Zr₂O₇缓冲层[J]. 无机材料学报, 2012, 27(11): 1191-1196.

CAI Zeng-Hui, LIU Zhi-Yong, LU Yu-Ming, CAI Chuan-Bing. Fabricating RE₂Zr₂O₇ Buffer Layers by Low Cost Electrodeposition[J]. Journal of Inorganic Materials, 2012, 27(11): 1191-1196.

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低成本电化学法制备RE₂Zr₂O₇缓冲层

Fabricating RE₂Zr₂O₇ Buffer Layers by Low Cost Electrodeposition

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