Enhanced flux pinning properties in Bi-2212 high temperature superconductors with nano-sized precipitates

被引：12
|
作者：
Zhang, Shengnan [1 ]
Liang, Ming [1 ]
Li, Chengshan [1 ]
Hao, Qingbin [1 ]
Feng, Jianqing [1 ]
Zhang, Pingxiang [1 ]
机构：
[1] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 157卷
基金：
中国国家自然科学基金;
关键词：
Superconductors; Particles; Nanosize; Microstructure; Electrical properties; THERMOELECTRIC PROPERTIES;
D O I：
10.1016/j.matlet.2015.05.096
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al doped Bi-2212 superconducting bulks with large amounts of nano-sized precipitates have been fabricated by spark plasma sintering (SPS) and subsequent annealing under oxygen. Due to the interferences of Al doping, alkali earth cuprates (AEC, (Ca, Sr)(x)CuyOz) have precipitated and formed the nanoparticles distributed uniformly in the Bi-2212 matrix. The influences of these precipitates and Al doping on the microstructures, transport and superconducting properties, especially the flux pinning properties have been systematically investigated. The point flux pinning mechanism has been obviously enhanced with the appearance of precipitates. The effects of these nano-sized precipitates on the enhancements of flux pinning properties in Bi-2212 bulks under magnetic field have been proved by both the increased activation energy and the improved flux pinning force. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：197 / 200
页数：4
相关论文
共 50 条
  • [1] Computer Simulation of Flux Pinning in the High-Temperature Superconductors Bi-2212
    Liu, L. F.
    Lin, D. H.
    Wang, X. Q.
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2011, 24 (05) : 1725 - 1727
  • [2] Computer Simulation of Flux Pinning in the High-Temperature Superconductors Bi-2212
    L. F. Liu
    D. H. Lin
    X. Q. Wang
    Journal of Superconductivity and Novel Magnetism, 2011, 24 : 1725 - 1727
  • [3] EFFECTS OF CATION SUBSTITUTION ON FLUX PINNING IN BI-2212 SUPERCONDUCTORS
    WAKATA, M
    TAKANO, S
    MUNAKATA, F
    YAMAUCHI, H
    CRYOGENICS, 1992, 32 (11) : 1046 - 1051
  • [4] Influences of Yb substitution on the intergrain connections and flux pinning properties of Bi-2212 superconductors
    Zhang, Shengnan
    Li, Chengshan
    Hao, Qingbin
    Lu, Tianni
    Zhang, Pingxiang
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2015, 511 : 26 - 32
  • [5] Highly enhanced flux pinning in Pb and rare earth codoped Bi-2212
    Biju, A.
    Vinod, K.
    Sarun, P. M.
    Syamaprasad, U.
    APPLIED PHYSICS LETTERS, 2007, 90 (07)
  • [6] Influences of Na Doping on Superconducting Properties of Bi-2212 High Temperature Superconductors
    Na掺杂对Bi-2212高温超导体性能的影响
    Zhang, Shengnan (snzhang@c-nin.com), 1600, Science Press (49): : 1184 - 1190
  • [7] Influences of Na Doping on Superconducting Properties of Bi-2212 High Temperature Superconductors
    Zhang Shengnan
    Ma Xiaobo
    Cui Lijun
    Huang Yingjian
    Li Chengshan
    Feng Jianqing
    Yan Guo
    Zhang Pingxiang
    RARE METAL MATERIALS AND ENGINEERING, 2020, 49 (04) : 1184 - 1190
  • [8] Influence of anisotropy and pinning centers on critical current properties in Bi-2212 superconductors
    Haraguchi, T.
    Takayama, S.
    Kiuchi, M.
    Otabe, E. S.
    Matsushita, T.
    Yasuda, T.
    Okayasu, S.
    Uchida, S.
    Shimoyama, J.
    Kishio, K.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 445 : 123 - 127
  • [9] Optimization of Bi-2212 high temperature superconductors by potassium substitution
    Zhang, Shengnan
    Li, Chengshan
    Hao, Qingbin
    Ma, Xiaobo
    Lu, Tianni
    Zhang, Pingxiang
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2015, 28 (04):
  • [10] Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors
    Huang, SL
    Koblischka, MR
    Fossheim, K
    Ebbesen, TW
    Johansen, TH
    PHYSICA C, 1997, 282 : 2279 - 2280
12345