Determination of crystallographic orientation of YBa/sub 2/Cu/sub 3/O/sub x/ grains from their optical twin patterns

Journal Article · Mon Apr 04 04:00:00 EDT 1988 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.99672· OSTI ID:5443999

Verhoeven, J D; Gibson, E D

Polycrystalline arrays of YBa/sub 2/Cu/sub 3/O/sub x/ grains display optical twin patterns and flat sides. The long sides of elongated grains are basal planes, )001), and the twin planes are )110) planes. A technique is presented here for evaluating the crystallographic orientation of an elongated grain from the angles formed on the polish surface by its (110) and (1-bar10) twin traces with the long grain boundary. Comparison with selected area channeling patterns from individual grains confirms the validity of the technique. The technique may be of some use in evaluating the texture of polycrystalline samples.

• Research Organization: Ames Laboratory, Department of Material Science and Engineering, Iowa State University, Ames, Iowa 50011
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5443999
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 52:14; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
CRYSTALS
GRAIN ORIENTATION
MICROSTRUCTURE
ORIENTATION
OXIDES
OXYGEN COMPOUNDS
POLYCRYSTALS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES