Extraction of misorientation components from the total misorientation at grain boundaries using electron diffraction in Y_0.9Sm_0.1Ba₂Cu₃O₇ Film

Journal Article · Mon Dec 31 23:00:00 EST 2007 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1551-2916.2008.02558.x· OSTI ID:945329

Li, Jing ^[1]; Goyal, Amit ^[1]

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1. ORNL

Grain boundary (GB) misorientation determines the transport properties of REBa{sub 2}Cu{sub 3}O{sub 7} (REBCO) superconducting films (rare earth (RE)). In this study, the misorientation angles between the adjacent grains in a Y{sub 0.9}Sm{sub 0.1}Ba{sub 2}Cu{sub 3}O{sub 7} (YSBCO) epitaxial superconducting film on buffers performed via ion-beam-assisted deposition have been characterized using transmission electron microscopy. The in-plane and out-of-plane misorientation at GBs and sub-GBs has been separated from the total misorientation. Most of the GB misorientation angles are smaller than 5{sup o}, with the in-plane component {gamma} < 3{sup o} and out-of-plane components {alpha} {le} 1{sup o} and {beta} < 2{sup o}. This study provided a relatively simplified, practical, and useful method for determination of GB misorientation angles and separation of the in-plane and out-of-plane misorientation from the total misorientation for epitaxial REBCO superconducting films.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: OE USDOE - Office of Electric Transmission and Distribution
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 945329
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 9 Vol. 91; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
ELECTRON DIFFRACTION
GRAIN BOUNDARIES
ORIENTATION
SAMARIUM OXIDES
SUPERCONDUCTING FILMS
YTTRIUM OXIDES