Microhardness studies on organic crystals

被引:15
作者
Stephens, J [1 ]
Gebre, T [1 ]
Batra, AK [1 ]
Aggarwal, MD [1 ]
Lal, RB [1 ]
机构
[1] Alabama A&M Univ, Dept Phys, Normal, AL 35762 USA
关键词
D O I
10.1023/A:1022289623789
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Microhardness measurements of different crystallographic faces of various new and modified organic crystals grown by different techniques were performed. Transparent crystals free from any cracks and defects were cut and polished out of various crystallographic faces of crystals grown by solution temperature lowering (Sol) techniques, while test samples were cut parallel (PL) and perpendicular (PR) to the pulling direction, of the crystals grown by Bridgman-Stockbarger (SB) technique. As expected, it was observed that the microhardness of organic crystals is much lower than inorganic crystals, and varied with crystallographic orientation.
引用
收藏
页码:179 / 180
页数:2
相关论文
共 12 条
  • [1] MODIFIED CZOCHRALSKI GROWTH OF NONLINEAR OPTICAL ORGANIC-CRYSTALS
    AGGARWAL, MD
    WANG, WS
    TAMBWE, M
    [J]. MATERIALS RESEARCH BULLETIN, 1992, 27 (04) : 431 - 437
  • [2] CZOCHRALSKI AND MODIFIED BRIDGMAN-STOCKBARGER GROWTH OF PURE, CD2+ AND ND3+ DOPED BENZIL SINGLE-CRYSTALS
    AGGARWAL, MD
    WANG, WS
    TAMBWE, M
    [J]. JOURNAL OF CRYSTAL GROWTH, 1993, 128 (1-4) : 891 - 896
  • [3] AGGARWAL MD, 2001, HDB ADV ELECT MAT DE, V9, P193
  • [4] MICROHARDNESS OF FLUX GROWN PURE DOPED AND MIXED RARE-EARTH ALUMINATES AND ORTHOCHROMITES
    KOTRU, PN
    RAZDAN, AK
    WANKLYN, BM
    [J]. JOURNAL OF MATERIALS SCIENCE, 1989, 24 (03) : 793 - 803
  • [5] Crystal growth and optical properties of 4-aminobenzophenone crystals for NLO applications
    Lal, RB
    Zhang, HW
    Wang, WS
    Aggarwal, MD
    Lee, HWH
    Penn, BG
    [J]. JOURNAL OF CRYSTAL GROWTH, 1997, 174 (1-4) : 393 - 397
  • [6] Nalwa H.S., 1996, Nonlinear Optics of Organic Molecules and Polymers]
  • [7] Bulk growth of high quality nonlinear optical crystals of L-arginine tetrafluoroborate (L-AFB)
    Owens, C
    Bhat, K
    Wang, WS
    Tan, A
    Aggarwal, MD
    Penn, BG
    Frazier, DO
    [J]. JOURNAL OF CRYSTAL GROWTH, 2001, 225 (2-4) : 465 - 469
  • [8] EFFECT OF IMPURITIES ON PLASTIC DEFORMATION OF CALCIUM FLUORIDE SINGLE CRYSTALS
    PATEL, AR
    DESAI, CC
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1970, 3 (11) : 1645 - &
  • [9] GROWTH OF BULK SINGLE-CRYSTALS OF ORGANIC MATERIALS FOR NONLINEAR OPTICAL-DEVICES - AN OVERVIEW
    PENN, BG
    CARDELINO, BH
    MOORE, CE
    SHIELDS, AW
    FRAZIER, DO
    [J]. PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, 1991, 22 (1-2) : 19 - 51
  • [10] MIXED METHYL-(2,4-DINITROPHENYL)-AMINOPROPANOATE - 2-METHYL-4-NITROANILINE CRYSTAL - A NEW NONLINEAR OPTICAL MATERIAL
    RAO, SM
    BATRA, AK
    LAL, RB
    EVANS, RA
    LOO, BH
    METZGER, RM
    LEE, WJ
    [J]. JOURNAL OF APPLIED PHYSICS, 1991, 70 (11) : 6674 - 6678