MICROSTRUCTURE OF MELT-TEXTURED YBA2CU3O7-DELTA

被引：9
|
作者：
MULLER, D
ULLRICH, M
HEINEMANN, K
FREYHARDT, HC
机构：
[1] Institut für Metallphysik, Universität Göttingen, 37073Göttingen
来源：
PHYSICA C | 1994年 / 220卷 / 1-2期
关键词：
D O I：
10.1016/0921-4534(94)90885-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The microstructure of stoichiometric Bridgman melt-textured YBa2Cu3O7-delta was investigated by transmission electron microscopy and electron diffraction. Crystal defects like twins, dislocations, small second-phase inclusions and lattice distortions are observed. The density of the dislocations is extremely high (1.7X10(10)/cm(2)) and the average diameter of the second-phase inclusions (BaCuO2) of 35 nm is rather small. The density of the inclusions amounts to 6X10(19)/m(3). The formation of the microstructural defects and their influence on flux pinning is discussed. It is supposed that the observed lattice distortions are possible defects which cause the fish-tail effect.
引用
收藏
页码：67 / 73
页数：7
相关论文
共 50 条
  • [1] MAGNETIZATION MEASUREMENTS ON MELT-TEXTURED YBA2CU3O7-DELTA
    LAVERTY, JR
    SHEN, ZX
    ALFORD, NM
    BUTTON, TW
    CAPLIN, AD
    CASSIDY, SM
    MCCARTNEY, DG
    POLLARD, RJ
    IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) : 1503 - 1505
  • [2] MAGNETIZATION MEASUREMENTS ON MELT-TEXTURED YBA2CU3O7-DELTA
    ALFORD, NM
    BUTTON, TW
    CAPLIN, AD
    CASSIDY, SM
    LAVERTY, JR
    MCCARTNEY, DG
    POLLARD, RJ
    SHEN, ZX
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 : S238 - S240
  • [3] CRITICAL CURRENTS AND MICROSTRUCTURE OF MELT-TEXTURED STOICHIOMETRIC YBA2CU3O7-DELTA CRYSTALLITES
    ULLRICH, M
    MULLER, D
    MEXNER, W
    STEINS, M
    HEINEMANN, K
    FREYHARDT, HC
    PHYSICAL REVIEW B, 1993, 48 (10): : 7513 - 7517
  • [4] ADDITION OF BASNO3 TO MELT-TEXTURED YBA2CU3O7-DELTA
    SONG, Y
    GAINES, JR
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1993, 6 (11): : 761 - 764
  • [5] PRODUCTION OF CONTINUOUS FILAMENTS OF MELT-TEXTURED YBA2CU3O7-DELTA SUPERCONDUCTOR
    HODGE, JD
    KLEMPTNER, LJ
    PARISH, MV
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1991, 10 (23) : 1362 - 1365
  • [6] AC MAGNETIC-SUSCEPTIBILITY OF MELT-TEXTURED YBA2CU3O7-DELTA
    JIN, XC
    XUE, YY
    HUANG, ZJ
    BECHTOLD, J
    HOR, PH
    CHU, CW
    PHYSICAL REVIEW B, 1993, 47 (10): : 6082 - 6085
  • [7] Microstructural characterization of quenched melt-textured YBa2Cu3O7-delta materials
    Alarco, JA
    Olsson, E
    Golden, SJ
    Bhargava, A
    Yamashita, T
    Barry, J
    Mackinnon, IDR
    JOURNAL OF MATERIALS RESEARCH, 1997, 12 (03) : 624 - 635
  • [8] MELTING LINE WITH QUANTUM CORRECTION IN A MELT-TEXTURED YBA2CU3O7-DELTA SAMPLE
    DEANDRADE, R
    DELIMA, OF
    PHYSICAL REVIEW B, 1995, 51 (14): : 9383 - 9386
  • [9] HIGH-PERFORMANCE IN A BULK MELT-TEXTURED YBA2CU3O7-DELTA CERAMIC
    MONOT, I
    LEPROPRE, M
    PROVOST, J
    DESGARDIN, G
    RAVEAU, B
    BOURGAULT, D
    BARBUT, JM
    BRAITHWAITE, D
    TOURNIER, R
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1992, 5 (12): : 712 - 718
  • [10] Relaxation measurements of VGF melt-textured YBa2Cu3O7-delta with varying stoichiometry
    Krelaus, J
    Ullrich, M
    Heinemann, K
    Freyhardt, HC
    APPLIED SUPERCONDUCTIVITY 1995, VOLS. 1 AND 2: VOL 1: PLENARY TALKS AND HIGH CURRENT APPLICATIONS; VOL 2: SMALL SCALE APPLICATIONS, 1995, 148 : 535 - 538
12345