Influence of Nb diffusion layer on superconductivity of MgB2/Nb/Cu wires

被引：0
|
作者：
机构：
[1] [1,2,3,Wang, Qingyang
[2] 1,Zhang, Pingxiang
[3] Yan, Guo
[4] 3,Sulpice, A.
[5] Xiong, Xiaomei
[6] Yang, Fang
[7] Liu, Guoqing
[8] Jiao, Gaofeng
[9] Li, Chengshan
来源：
Li, C. (MgB2@QQ.com) | 1600年 / Science Press卷 / 42期
关键词：
Diffusion barriers - Niobium compounds - Magnesium compounds - Heat treatment - Wire - Copper compounds;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The MgB2 wires were prepared by in-situ Powder-in-Tube (PIT) method with Nb/Cu compounds tube as the sheath and then were heat treated at various temperatures for 2 h in flowing argon. The resistivity (R-T), magnetic moment (M-T), transport critical current (Ic-B) and magneto optical (MO) properties of MgB2 wires were analyzed. The results show that there is a diffusion layer between MgB2 superconducting core and Nb barrier layer when the heat-treatment temperature is higher than 750°C, and this diffusion layer obstructs the current transfer into MgB2 superconductor core from the Cu sheath. This indicates that the best heat-treatment temperature for the MgB2 wires with Nb as the barrier layer should be lower than 750°C. Copyright © 2013 Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
引用
收藏
相关论文
共 50 条
  • [21] Influence of extra magnesium on the Nb-B interface and superconducting properties of MgB2/Nb tapes
    Sun, Yu Yan
    Liu, Guo Qing
    Qi, Ming
    Sulpice, Andre
    Mossang, Eric
    Yan, Guo
    Zhang, Ping Xiang
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2013, 485 : 24 - 29
  • [22] Electromagnetic densification of MgB2/Cu wires
    Wozniak, M.
    Giowacki, B. A.
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2014, 27 (03):
  • [23] Enhancement of a mechanical property of metal sheaths (Cu and Nb) of MgB2 superconducting wires by E-beam irradiation
    Kim, C-J
    Lee, T. R.
    Jun, B. -H
    PROGRESS IN SUPERCONDUCTIVITY AND CRYOGENICS, 2022, 24 (03): : 30 - 34
  • [24] Josephson effects in MgB2 break junctions and MgB2/Nb point contacts
    Tao, HJ
    Li, ZZ
    Xuan, Y
    Ren, ZA
    Che, GC
    Zhao, BR
    Zhao, ZX
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 386 : 569 - 574
  • [25] Development and Characterization of Cu-Nb-MgB2 and CuNi-Nb-MgB2 Wires With VB2 and Carbon Nanotube Additions
    Rodrigues, Durval, Jr.
    Antunes, Luiz H. M.
    Manesco, Antonio L. R.
    Moraes, Eduardo M.
    da Silva, Lucas B. S.
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2015, 25 (03)
  • [26] Pinning enhancement in M/MgB2 (M=Ag, Cu and Nb) system
    Kimishima, Y.
    Takami, S.
    Uehara, M.
    Okuda, T.
    Kuramoto, T.
    7TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'05), 2006, 43 : 488 - 491
  • [27] Effect of magnetic NiCoB nanoparticles on superconductivity in MgB2 wires
    Novosel, N.
    Galic, S.
    Pajic, D.
    Skoko, Z.
    Loncarek, I.
    Mustapic, M.
    Zadro, K.
    Babic, E.
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2013, 26 (06):
  • [28] The effects of sintering temperature on superconductivity in MgB2/Fe wires
    Kim, J. H.
    Dou, S. X.
    Wang, J. L.
    Shi, D. Q.
    Xu, X.
    Hossain, M. S. A.
    Yeoh, W. K.
    Choi, S.
    Kiyoshi, T.
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2007, 20 (05): : 448 - 451
  • [29] The Influence of Ex Situ MgB2 Barrier and HIP on the Ic Anisotropy in Double Core MgB2/Cu Wires
    Gajda, D.
    Morawski, A.
    Zaleski, A.
    Cetner, T.
    ACTA PHYSICA POLONICA A, 2010, 118 (05) : 1059 - 1061
  • [30] Interfacial reactions and oxygen distribution in MgB2 wires in Fe, stainless steel and Nb sheaths
    Grovenor, CRM
    Goodsir, L
    Salter, CJ
    Kovac, P
    Husek, I
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2004, 17 (03): : 479 - 484
12345