The effect of oxygen partial pressure and cooling rate during processing on the critical current density and grain coupling of Bi-2212/Ag tapes

被引：4
|
作者：
Fujii, H
Nakane, T
Kumakura, H
Yamaguchi, H
机构：
[1] Natl Inst Mat Sci, Superconducting Mat Ctr, Tsukuba, Ibaraki 3050047, Japan
[2] Natl Inst Mat Sci, Mat Anal Stn, Tsukuba, Ibaraki 3050047, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2006年 / 19卷 / 02期
关键词：
D O I：
10.1088/0953-2048/19/2/014
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We discuss the reason why high oxygen partial pressure (P-O2) heat treatment is effective in increasing the critical current density (J(c)) of Bi2Sr2CaCu2Oy (Bi-2212)/Ag tapes prepared by a partial melting and subsequent slow cooling method. The high J(c) values obtained by the high P-O2 heat treatment is attributed to the strong coupling of grains due to the suppression of the formation of non-superconducting phases at grain boundaries and the decrease of anisotropy due to the high oxygen content of the Bi-2212.
引用
收藏
页码：233 / 236
页数：4
相关论文
共 50 条
  • [31] Effect of grain network modifications due to additives on critical current (Ic) in Bi-2212 superconductor
    Ramesh, K.S.
    Ramachandra Rao, M.S.
    Physica C: Superconductivity and its Applications, 1999, 316 (01): : 119 - 128
  • [32] Effect of grain network modifications due to additives on critical current (Ic) in Bi-2212 superconductor
    Ramesh, KS
    Rao, MSR
    PHYSICA C, 1999, 316 (1-2): : 119 - 128
  • [33] Effect of oxygen partial pressure on processing conditions and phase transformation in Ag/Bi-2223 tapes
    Ahn, JH
    Liu, HK
    Dou, SX
    PHYSICA C, 2001, 351 (04): : 371 - 378
  • [34] Stress/strain dependence of critical current in Cu-Ag externally reinforced Ag-Zr/Bi-2212 superconducting tapes
    Katagiri, K
    Kasaba, K
    Shoji, Y
    Ishizaki, M
    Watanabe, K
    Noto, K
    Hiraoka, M
    CRYOGENICS, 1999, 39 (05) : 453 - 458
  • [35] THE EFFECT OF FABRICATION PRESSURE ON CRITICAL TRANSPORT CURRENT-DENSITY IN PRESS-SINTER PROCESSING OF BI(2223)AG TAPES
    KOVAC, P
    HUSEK, I
    PACHLA, W
    MELISEK, T
    KLIMENT, V
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1995, 8 (05): : 341 - 346
  • [36] The effect of interlayer coupling on critical current density in Bi2212 system
    Feng S.-J.
    Chen C.-X.
    Li G.
    Li X.-G.
    Frontiers of Physics in China, 2006, 1 (2): : 243 - 245
  • [37] Microstructure and critical current density of Bi2212 tapes grown by magnetic melt-processing
    Maeda, H
    Ohya, K
    Sato, M
    Chen, WP
    Watanabe, K
    Motokawa, M
    Matsumoto, A
    Kumakura, H
    Schwartz, J
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 382 (01): : 33 - 37
  • [38] Optimization of processing to improve critical current density of Ag/Bi-2223 tapes
    Dou, SX
    Zeng, R
    Ye, B
    Guo, YC
    Hu, QY
    Horvat, J
    Liu, HK
    Beales, T
    Yang, XF
    Apperley, M
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1998, 11 (10): : 915 - 920
  • [39] Processing factors for high critical current density in Bi-2223/Ag tapes
    Willis, JO
    Ray, RD
    Bingert, JF
    Phillips, DS
    Beckman, RJ
    Smith, MG
    Sebring, RJ
    Smith, PA
    Bingham, BL
    Coulter, JY
    Peterson, DE
    PHYSICA C, 1997, 278 (1-2): : 1 - 10
  • [40] Processing factors for high critical current density in Bi-2223/Ag tapes
    Los Alamos Natl Lab, Los Alamos, United States
    Phys C Supercond, 1-2 (1-10):
12345