Dislocation sources in sapphire (α-Al2O3) near microhardness indents

被引：0
|
作者：
Farber, Boris Ya [1 ]
Yoon, Seog-Young [1 ]
Lagerlog, D. [1 ]
Heuer, Arthur H. [1 ]
机构：
[1] Case Western Reserve Univ, Cleveland, United States
来源：
Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques | 1993年 / 84卷 / 06期
关键词：
Ceramic materials - Crystallography - Crystals - Semiconductor materials - Transmission electron microscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The operation of sources emitting dislocations on the basal plane of sapphire (α-Al2O3 single-crystals have been observed using TEM in the vicinity of hardness indentations. The structure of the sources and a mechanism for dislocation generation are discussed in terms of the crystallography of sapphire.
引用
下载
收藏
页码：426 / 430
相关论文
共 50 条
  • [1] DISLOCATION SOURCES IN SAPPHIRE (ALPHA-AL2O3) NEAR MICROHARDNESS INDENTS
    FARBER, BY
    YOON, SY
    PETER, K
    LAGERLOF, D
    HEUER, AH
    ZEITSCHRIFT FUR METALLKUNDE, 1993, 84 (06): : 426 - 430
  • [2] Dislocation damping in sapphire, Al2O3 polycrystal and Al2O3/SiC nanocomposite
    Ota, K
    Pezzotti, G
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1996, 15 (11) : 966 - 969
  • [3] Interstitial faulted dislocation dipole formation in sapphire (α-Al2O3)
    Lagerloef, K. P. D.
    Castaing, J.
    Heuer, A. H.
    PHILOSOPHICAL MAGAZINE, 2013, 93 (1-3) : 152 - 161
  • [4] Effect of dislocation density on the rhombohedral twinning stress of sapphire (α-Al2O3)
    Muñoz, A
    Castaing, J
    Domínguez-Rodríguez, A
    REVISTA DE METALURGIA, 2001, 37 (02) : 285 - 289
  • [5] Basal twinning in sapphire (α-Al2O3)
    Lagerlöf, KPD
    He, AQ
    Heuer, AH
    ADVANCES IN TWINNING, 1999, : 103 - 124
  • [6] The defect chemistry of sapphire (α-Al2O3)
    Lagerlof, KPD
    Grimes, RW
    ACTA MATERIALIA, 1998, 46 (16) : 5689 - 5700
  • [7] Basal slip in sapphire (α-Al2O3)
    Castaing, J.
    Munoz, A.
    Gomez Garcia, D.
    Dominguez Rodriguez, A.
    Materials Science and Engineering A, 1997, A233 (1-2): : 121 - 125
  • [8] ACOUSTIC-EMISSION AND MICROCRACKING IN SAPPHIRE, SINTERED AL2O3, AL/AL2O3 COMPOSITE, AND ALUMINUM
    BREVAL, E
    SRIKANTH, V
    SUBBARAO, EC
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (09) : 2541 - 2544
  • [9] Slip and twinning dislocations in sapphire (α-Al2O3)
    Heuer, AH
    Lagerlof, KPD
    Castaing, J
    PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1998, 78 (03): : 747 - 763
  • [10] Slip and twinning dislocations in sapphire (α-Al2O3)
    Dept. of Mat. Sci. and Engineering, Case Western Reserve University, Cleveland, OH 44106-7204, United States
    不详
    Philos. Mag. A Phys. Condens. Matter Struct. Defects Mech. Prop., 3 (747-763):
12345