High resolution electron microscopy study of grain boundaries in sintered YBa2Cu3O7-δ

被引：0
|
作者：
Zandbergen, H.W. [1 ]
Gronsky, R. [1 ]
Thomas, G. [1 ]
机构：
[1] Lawrence Berkeley Lab, United States
来源：
Physica C: Superconductivity and its Applications | 1988年 / 153-55卷 / 01期
关键词：
Ceramic Materials--Microscopic Examination - Oxides;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
High resolution electron microscopy (HREM) has been carried out on grain boundaries in dense (>90%) YBa2Cu3O7-δ, being both in the tetragonal and orthorhombic form. Grain boundaries were found to be predominantly parallel to (001) of one of the adjacent grains. No amorphous interlayer was observed in the grain boundaries. In samples sintered and annealed for several days deterioration due to intercalation of the crystal lattice near grain boundaries was observed. It is discussed that the low critical currents in sintered materials are caused by preferred grain growth in combination with the atomic structure at the grain boundary interface, and by the intercalation near the grain boundary.
引用
收藏
页码：1002 / 1003
相关论文
共 50 条
  • [21] Spatially-resolved nonlinearity measurements of YBa2Cu3O7-δ bicrystal grain boundaries
    Lee, SC
    Anlage, SM
    APPLIED PHYSICS LETTERS, 2003, 82 (12) : 1893 - 1895
  • [22] Study of the YBa2Cu3O3/PBa2Cu3O7 multilayer films by high resolution electron microscopy
    Wei, Liu
    Yun, Zhang
    Jijun, Sun
    Bairu, Zhao
    Lin, Li
    Physica C: Superconductivity and its Applications, 1997, 282-287 (pt 2): : 681 - 682
  • [23] Doping-induced enhancement of the critical currents of grain boundaries in YBa2Cu3O7-δ
    Schmehl, A
    Goetz, B
    Schulz, RR
    Schneider, CW
    Bielefeldt, H
    Hilgenkamp, H
    Mannhart, J
    EUROPHYSICS LETTERS, 1999, 47 (01): : 110 - 115
  • [24] Effect of Ca-doping on grain boundaries and superconducting properties of YBa2Cu3O7-δ
    Berenov, AV
    Marriott, R
    Foltyn, SR
    MacManus-Driscoll, JL
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2001, 11 (01) : 3780 - 3783
  • [25] Homoepitaxial (110) YBa2Cu3O7-δ/YBa2Cu3O7-δ SNS junctions
    Usagawa, T
    Wen, JG
    Koyama, S
    Utagawa, T
    Tanabe, K
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1999, 38 (4B): : L436 - L439
  • [26] Abnormal grain growth in sintered YBa2Cu3O7-δ nanocrystalline powders produced by high energy ball milling
    Simoneau, M.
    L'Esperance, G.
    Schulz, R.
    Materials Science Forum, 1996, 225-227 (Pt 2): : 917 - 922
  • [27] Effects of low temperature electron irradiation on single crystal and sintered YBa2Cu3O7-δ
    Vichery, H., 1600, (159):
  • [28] Analytical transmission electron microscopy of thick YBa2Cu3O7-δ films on rabits
    Leonard, KJ
    Kang, S
    Kang, B
    Goyal, A
    Kroeger, DM
    FABRICATION OF LONG-LENGTH AND BULK HIGH TERMPERATURE SUPERCONDUCTORS, 2004, 149 : 113 - 122
  • [29] Fine structure in a high-resolution vortex dissipation study of YBa2Cu3O7-δ
    Univ of Texas at Austin, Austin, United States
    Phys Rev Lett, 4 (731-734):
  • [30] The nature of twin boundaries in the high-temperature superconductor YBa2Cu3O7-δ
    Zhu, YM
    Welch, DO
    ADVANCES IN TWINNING, 1999, : 209 - 222
12345