Melt processing and characterization of bulk NdBaCuO

被引：6
|
作者：
Monot-Laffez, I [1 ]
Tancret, F [1 ]
Guilmeau, E [1 ]
Desgardin, G [1 ]
Raveau, B [1 ]
机构：
[1] ISMRA, CNRS, UMR 6508, Lab CRISMAT, F-14050 Caen, France
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2000年 / 13卷 / 06期
关键词：
D O I：
10.1088/0953-2048/13/6/305
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nd1+xBa2-xCU3O7-delta (Nd123) bulk superconductors have been synthesized under air and by the oxygen-controlled melt growth method (OCMG). We have studied the effects of Nd4Ba2Cu2O10 (Nd422) additions, processing rates and doping effects on the microstructure and the superconducting properties in the OCMG-processed samples. Unlike the YBCO system, platinum doping or Nd422 additions do not refine the Nd422 secondary phase inclusions. On the other hand, Ce doping is effective in Nd422 refinement as in the YBCO system. The nucleation window has been determined for growth conditions in air, and was found to be in a very narrow temperature range. The effectiveness of the MgO single crystal used as seed, the occurrence of solid solution and the oxygen content are also examined. Good superconducting properties were obtained in OCMG samples while poor properties occurred in the air-textured sample and cerium-doped samples.
引用
收藏
页码：655 / 659
页数：5
相关论文
共 50 条
  • [11] Microstructure and properties of oxygen controlled melt textured NdBaCuO superconductive ceramics
    Monot, I
    Tancret, F
    Laffez, P
    Van Tendeloo, G
    Desgardin, G
    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1999, 65 (01): : 26 - 34
  • [12] MELT PROCESSING OF BULK HIGH-TC SUPERCONDUCTORS AND THEIR APPLICATION
    MURAKAMI, M
    OYAMA, T
    FUJIMOTO, H
    GOTOH, S
    YAMAGUCHI, K
    SHIOHARA, Y
    KOSHIZUAKA, N
    TANAKA, S
    IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) : 1479 - 1486
  • [13] Melt processing of Bi-2212 thick films and bulk components
    Lang, T
    Buhl, D
    Cantoni, M
    Wu, Z
    Gauckler, LJ
    APPLIED SUPERCONDUCTIVITY 1995, VOLS. 1 AND 2: VOL 1: PLENARY TALKS AND HIGH CURRENT APPLICATIONS; VOL 2: SMALL SCALE APPLICATIONS, 1995, 148 : 203 - 206
  • [14] Production, melt processing and properties of high temperature superconducting bulk material
    Schätzle, P
    PRAKTISCHE METALLOGRAPHIE-PRACTICAL METALLOGRAPHY, 2000, 37 (07): : 359 - 369
  • [15] Production, melt processing and properties of high temperature superconducting bulk material
    Schätzle, Peter
    2000, Carl Hanser Verlag, Munich, Germany (37):
  • [16] Influence of initial composition and oxygen partial pressure on the properties of melt-textured NdBaCuO
    Bieger, W.
    Krabbes, G.
    Schaetzle, P.
    Zelenina, L.
    Wiesner, U.
    Verges, P.
    Klosowski, J.
    Physica C: Superconductivity and its Applications, 1996, 257 (1-2): : 46 - 52
  • [17] The influence of initial composition and oxygen partial pressure on the properties of melt-textured NdBaCuO
    Bieger, W
    Krabbes, G
    Schatzle, P
    Zelenina, L
    Wiesner, U
    Verges, P
    PHYSICA C, 1996, 257 (1-2): : 46 - 52
  • [18] Residual microstresses, a-b microcracking and twin structure in oxygen controlled melt grown NdBaCuO superconductors
    Diko, P
    Kojo, H
    Murakami, M
    PHYSICS AND MATERIALS SCIENCE OF HIGH TEMPERATURE SUPERCONDUCTORS, IV, 1997, 26 : 187 - 197
  • [19] Melt processing of (rare earth)-Ba-Cu-O bulk superconductors
    Ikuta, H
    Yamada, T
    Yoshikawa, M
    Yanagi, Y
    Itoh, Y
    Latha, B
    Mizutani, U
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2005, 18 (02): : S119 - S125
  • [20] Melt growth and characterization of Mg2Si bulk crystals
    Tamura, Daiki
    Nagai, Ryo
    Sugimoto, Kazuhiro
    Udono, Haruhiko
    Kikuma, Isao
    Tajima, Hiroyuki
    Ohsugi, Isao J.
    THIN SOLID FILMS, 2007, 515 (22) : 8272 - 8276
12345