Electromagnetic and microstructural investigations of a naturally grown 8{degree} [001] tilt bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}}
Abstract
Electromagnetic characterization and high resolution transmission electron microscopy have been conducted on the same 8{degree} [001] symmetrical (010) tilt boundary in a naturally grown, bulk-scale bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}} (BSCCO-2212). The resistive transition showed excess resistance above and below {ital T}{sub {ital c}}, suggesting some weak coupling at the boundary, but the inter- and intra granular voltage-current characteristics, irreversibility fields, and critical current density ({ital J}{sub {ital c}}) values were very similar and characteristic of strongly coupled grains and grain boundary. The misorientation was accommodated by a set of partial dislocations with the Frank spacing of 1.9 nm. The dislocation cores appeared to be separated by relatively undistorted regions of crystal. The {ital J}{sub {ital c}} values at 25 K exceeded 10{sup 3} A/cm{sup 2} in fields of several tesla, more than two orders of magnitude larger than that found earlier in [001] twist boundaries of BSCCO-2212. This result is consistent with the view that low angle [001] tilt boundaries play an important role for current transport in polycrystalline BSCCO tapes. {copyright} {ital 1996 Materials Research Society.}
- Authors:
-
- Applied Superconductivity Center, Materials Science Program, Madison, Wisconsin 53706 (United States)
- Applied Superconductivity Center, University of Wisconsin, Madison, Wisconsin 5306 (United States)
- Applied Superconductivity Center, Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
- Ceramics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
- Applied Superconductivity Center, Department of Materials Science and Engineering, Materials Science Program, Madison , Wisconsin 53706 (United States)
- Applied Superconductivity Center, Department of Materials and Engineering, Materials Science Program and Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
- Publication Date:
- OSTI Identifier:
- 283352
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Materials Research
- Additional Journal Information:
- Journal Volume: 11; Journal Issue: 4; Other Information: PBD: Apr 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; BISMUTH OXIDES; CRITICAL CURRENT; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; DISLOCATIONS; HIGH-TC SUPERCONDUCTORS; BICRYSTALS; CRYSTAL GROWTH; MICROSTRUCTURE; ELECTRIC CONDUCTIVITY; IV CHARACTERISTIC
Citation Formats
Wang, J, Tsu, I, Cai, X Y, Kelley, R J, Vaudin, M D, Babcock, S E, and Larbalestier, D C. Electromagnetic and microstructural investigations of a naturally grown 8{degree} [001] tilt bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}}. United States: N. p., 1996.
Web. doi:10.1557/JMR.1996.0108.
Wang, J, Tsu, I, Cai, X Y, Kelley, R J, Vaudin, M D, Babcock, S E, & Larbalestier, D C. Electromagnetic and microstructural investigations of a naturally grown 8{degree} [001] tilt bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}}. United States. https://doi.org/10.1557/JMR.1996.0108
Wang, J, Tsu, I, Cai, X Y, Kelley, R J, Vaudin, M D, Babcock, S E, and Larbalestier, D C. 1996.
"Electromagnetic and microstructural investigations of a naturally grown 8{degree} [001] tilt bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}}". United States. https://doi.org/10.1557/JMR.1996.0108.
@article{osti_283352,
title = {Electromagnetic and microstructural investigations of a naturally grown 8{degree} [001] tilt bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}}},
author = {Wang, J and Tsu, I and Cai, X Y and Kelley, R J and Vaudin, M D and Babcock, S E and Larbalestier, D C},
abstractNote = {Electromagnetic characterization and high resolution transmission electron microscopy have been conducted on the same 8{degree} [001] symmetrical (010) tilt boundary in a naturally grown, bulk-scale bicrystal of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}} (BSCCO-2212). The resistive transition showed excess resistance above and below {ital T}{sub {ital c}}, suggesting some weak coupling at the boundary, but the inter- and intra granular voltage-current characteristics, irreversibility fields, and critical current density ({ital J}{sub {ital c}}) values were very similar and characteristic of strongly coupled grains and grain boundary. The misorientation was accommodated by a set of partial dislocations with the Frank spacing of 1.9 nm. The dislocation cores appeared to be separated by relatively undistorted regions of crystal. The {ital J}{sub {ital c}} values at 25 K exceeded 10{sup 3} A/cm{sup 2} in fields of several tesla, more than two orders of magnitude larger than that found earlier in [001] twist boundaries of BSCCO-2212. This result is consistent with the view that low angle [001] tilt boundaries play an important role for current transport in polycrystalline BSCCO tapes. {copyright} {ital 1996 Materials Research Society.}},
doi = {10.1557/JMR.1996.0108},
url = {https://www.osti.gov/biblio/283352},
journal = {Journal of Materials Research},
number = 4,
volume = 11,
place = {United States},
year = {Mon Apr 01 00:00:00 EST 1996},
month = {Mon Apr 01 00:00:00 EST 1996}
}