DEFECTS AND THE THERMAL-CONDUCTIVITY OF YBA2CU3O7-DELTA AND YBA2CU4O8

被引：0
|
作者：
ANDERSSON, BM
SUNDQVIST, B
机构：
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 195卷 / 1-2期
关键词：
D O I：
10.1016/0925-8388(93)90823-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We present below the first measured data for the thermal diffusivity and the thermal conductivity, lambda, of dense, sintered ceramic YBa2Cu4O8 (1-2-4) as a function of temperature T between 40 and 300 K. At 300 K, lambda is 6.3 Wm-1 K-1, increasing with decreasing T to about 9.5 Wm-1 K-1 near T(C). This T dependence is much stronger than in YBa2Cu3O7-delta (I -2-3). Only a very small enhancement is observed in lambda below T(C). As in 1-2-3, lambda is mainly limited by phonon scattering by defects.
引用
收藏
页码：655 / 658
页数：4
相关论文
共 50 条
  • [21] PLANAR DEFECTS IN YBA2CU3O7-DELTA
    BROKMAN, A
    PALHAN, M
    WEGER, M
    PHYSICA C, 1988, 153 (02): : 1653 - 1654
  • [22] CA-SUBSTITUTION AND LA-SUBSTITUTION IN YBA2CU3O7-DELTA, Y2BA4CU7O15-DELTA AND YBA2CU4O8
    BUCKLEY, RG
    POOKE, DM
    TALLON, JL
    PRESLAND, MR
    FLOWER, NE
    STAINES, MP
    JOHNSON, HL
    MEYLAN, M
    WILLIAMS, GVM
    BOWDEN, M
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1991, 174 (4-6): : 383 - 393
  • [23] THERMAL-CONDUCTIVITY OF POLYCRYSTALLINE YBA2CU4O8 AND THE PHONON TRANSPORT MODEL
    SUNDQVIST, B
    ANDERSSON, BM
    PHYSICA C, 1994, 235 : 1377 - 1378
  • [24] HOT DEFORMATION OF YBA2CU3O7-DELTA AND COMPOSITE YBA2CU3O7-DELTA/AG
    HENDRIX, BC
    ABE, T
    BOROFKA, JC
    WANG, PC
    TIEN, JK
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (04) : 1008 - 1010
  • [25] THERMAL-CONDUCTIVITY OF YBA2CU4O8 UNDER HIGH-PRESSURE
    ANDERSSON, BM
    SUNDQVIST, B
    PHYSICA C, 1993, 216 (1-2): : 187 - 194
  • [26] Influence of Cu site impurities on the thermal conductivity of YBa2Cu3O7-delta
    Fujishiro, H
    Ikebe, M
    Nakasato, K
    Noto, K
    PHYSICA C, 1996, 263 (1-4): : 305 - 308
  • [27] PLANAR DEFECTS IN YBA2CU4O8
    KREKELS, T
    VANTENDELOO, G
    AMELINCKX, S
    DELEEUW, DM
    DEKRAAN, M
    PHYSICA C, 1990, 169 (5-6): : 457 - 463
  • [28] SPUTTERING OF YBA2CU3O7-DELTA/NDALO3/YBA2CU3O7-DELTA TRILAYERS
    RAUCH, W
    BEHNER, H
    GIERES, G
    SIPOS, B
    SEEBOCK, RJ
    EIBL, O
    KERNER, R
    SOLKNER, G
    GORNIK, E
    APPLIED PHYSICS LETTERS, 1992, 60 (26) : 3304 - 3306
  • [29] THERMAL-CONDUCTIVITY OF YBA2CU3O7-DELTA FROM AMBIENT TO 1150-K
    PILLAI, CGS
    SOLID STATE COMMUNICATIONS, 1991, 80 (04) : 277 - 280
  • [30] FORMATION OF A STABLE SHELL OF YBA2CU4O8 UPON OXYGEN OUTDIFFUSION FROM SUPERCONDUCTING YBA2CU3O7-DELTA OXIDES
    SHI, LT
    TU, KN
    APPLIED PHYSICS LETTERS, 1991, 59 (16) : 2040 - 2042
12345