低成本电化学法制备RE2Zr2O7缓冲层

无机材料学报, 2012, 27(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 ^1, , 刘志勇 ^2, , 鲁玉明 ^3, , 蔡传兵 ^4,

1.上海大学超导及应用技术研究中心,上海,200444

2.上海大学超导及应用技术研究中心,上海,200444

3.上海大学超导及应用技术研究中心,上海,200444

4.上海大学超导及应用技术研究中心,上海,200444

基金项目: 科技部项目(2011CBA00105,2009AA032204) 上海市科委项目(11dz1100300,10dz1203500)

关键词： YBCO , 缓冲层 , 电化学 , 双轴织构

Fabricating RE2Zr2O7 Buffer Layers by Low Cost Electrodeposition

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YBa2Cu3O7-δ (YBCO)超导层.

参考文献

[1]	Jiang H,Huang Y,How H,et al.Observation of ultrahigh critical current densities in high-Tc superconducting bridge constrictions.Phys.Rev.Lett.,1991,66(13):1785-1788.
[2]	Hull J R.Applications of high-temperature superconductors in power technology.Rep.Prog.Phys.,2003,66(11):1865-1886.
[3]	Larbalestier D,Gurevich A,Feldmann D,et al.High-Tc superconducting materials for electric power applications.Nature,2001,414:368-377.
[4]	Char K,Colclough M S,Garrison S M,et al.Bi-epitaxial grain boundary junctions in YBa2Cu3O7.Appl.Phys.Lett.,1991,59(6):733-735.
[5]	Hilgenkamp H,Mannhart J.Grain boundaries in high-Tc superconductors.Rev.Mod.Phys.,2002,74(2):485-549.
[6]	Skakle J M S.Crystal chemical substitutions and doping of YBa2Cu3Ox and related superconductors.Mater.Sci.Eng.,1998,23(1):1-40.
[7]	Paranthaman M,Aytug T,Kim K,et al.Strategic buffer layer development for YBCO coated conductors.IEEE Trans.Appl.Supercond.,2009,19(3):3303-3306.
[8]	Li X P,Rupich M W,Thieme C L H,et al.The development of second generation HTS wire at american superconductor.IEEE Trans.Appl.Supercond.,2009,19(3):3231-3235.
[9]	Izumi T,Shiohara Y.R&D of coated conductors for applications in Japan.Physica C,2010,470(20):967-970.
[10]	Goyal A,Paranthaman M P,Schoop U.The RABiTS approach:using rolling-assisted biaxially textured substrates for high-performance YBCO superconductors.MRS Bulletin,2004,29(8):552-561.
[11]	Ohmatsu K,Ueyama M,Hasegawa K,et al.Development of 200 meter HoBCO coated conductors on Ni-alloy textured substrates.IEEE Trans.Appl.Supercond.,2007,17(2):3390-3393.
[12]	Shiohara Y,Yoshizumi M,Izumi T,et al.Current status and future prospects of Japanese national project on coated conductor development and its applications.Physica C,2008,468(15-20):1498-1503.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网