Effect of microstructure on the superconducting properties of Gd-Ba-Cu-O bulk fabricated in air

被引：11
|
作者：
Nariki, S
Hinai, H
Sakai, N
Murakami, M
Otsuka, M
机构：
[1] ISTEC, Superconduct Res Lab, Minato Ku, Tokyo 1050023, Japan
[2] Shibaura Inst Technol, Minato Ku, Tokyo 1088548, Japan
来源：
PHYSICA C | 2001年 / 357卷 / 357-360期
关键词：
melt processing; critical temperature; critical current density; Gd-Ba-Cu-O;
D O I：
10.1016/S0921-4534(01)00373-2
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Bulk Gd-Ba-Cu-O superconductors were melt processed in air. The Gd2BaCuO5 (Gd211) particles dispersed in the melt-textured bulk could be refined by employing fine Gd211 starting powders. Since T-c of the bulk samples was lowered with decreasing the size of Gd211 particle, J(c) was not improved. However, we found that a depression of T-c was prevented by Ag addition, leading to higher J(c) values. The J(c) of Gd-Ba-Cu-O/Ag with Gd211 particles about 0.7 mum in size exhibited 60 000 A/cm(2) at 77 K and self-field. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：817 / 820
页数：4
相关论文
共 50 条
  • [21] Mechanical properties of melt-textured Gd-Ba-Cu-O bulk with silver addition
    Nariki, S
    Sakai, N
    Tomita, A
    Murakami, A
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 378 : 779 - 782
  • [22] Superconducting properties of Nd-Ba-Cu-O fabricated in air
    Iida, K
    Yoshioka, J
    Murakami, M
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 372 (PART 2): : 1152 - 1154
  • [23] Magnetic Flux Concentrator Using Gd-Ba-Cu-O Bulk Superconductors
    Kiyoshi, T.
    Choi, S.
    Matsumoto, S.
    Asano, T.
    Uglietti, D.
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2009, 19 (03) : 2174 - 2177
  • [24] Fabrication of Gd-Ba-Cu-O bulk superconductors with a cold seeding method
    Inoue, K
    Sakai, N
    Murakami, M
    Hirabayashi, I
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2005, 426 : 543 - 549
  • [25] Microstructure and superconducting properties of Dy-Ba-Cu-O bulk superconductors fabricated in different oxygen atmospheres
    Tanaka, H
    Nariki, S
    Sakai, N
    Hirabayashi, I
    Murakami, M
    Takizawa, T
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2005, 426 : 660 - 665
  • [26] Pulsed Field Waveforms for Magnetization of HTS Gd-Ba-Cu-O Bulk Magnets
    Ida, T.
    Matsuzaki, H.
    Morita, E.
    Sakashita, H.
    Harada, T.
    Ogata, H.
    Kimura, Y.
    Miki, M.
    Kitano, M.
    Izumi, M.
    7TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'05), 2006, 43 : 539 - 542
  • [27] Fabrication of the Gd-Ba-Cu-O Superconductor Bulk through the Infiltration Growth Process
    Zhang, Xiaojuan
    Zhang, Yufeng
    Zhou, Wenli
    Jia, Lingling
    Peng, Liqi
    Izumi, Mitsuru
    2015 4TH INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL PROTECTION (ICEEP 2015), 2015, : 3566 - 3570
  • [28] Introducing Nanosized Pinning Centers Into Bulk Gd-Ba-Cu-O by Infiltration Method
    Zhou, Difan
    Izumi, Mitsuru
    Fujimoto, Takashi
    Zhang, Yufeng
    Zhou, Wen
    Xu, Kun
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2015, 25 (03)
  • [29] Superconducting properties of Gd-Ba-Cu-O single grains processed from a new, Ba-rich precursor compound
    Shi, Y.
    Babu, N. Hari
    Iida, K.
    Cardwell, D. A.
    8TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'07), 2008, 97
  • [30] The influence of BaCuO2-δ addition in Gd-Ba-Cu-O single-grain superconductors fabricated in air
    Dai, JQ
    Zhao, ZX
    Xiong, JW
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2003, 16 (07): : 815 - 819
12345