Structural characteristics of grain boundaries in superconducting Bi sub 2 Sr sub 2 Ca sub 1 Cu sub 2 O sub x fibers

Conference · Fri Mar 01 00:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5877606

Sanders, S C; Miller, T A; Kramer, M J; Chumbley, L S ^[1]

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1. Iowa State Univ. of Science and Technology, Ames, IA (United States). Dept. of Physics

This paper reports on scanning electron microscopy (SEM) and transmission electron microscopy (TEM) used to study grain morphology and grain boundaries in superconducting Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} fibers produced by gas jet fiberization. The narrowest fibers are composed of chains of platelets about 5 {times} 3 {times} 0.2 {mu}m{sup 3} oriented such that the long direction in each platelet is primarily parallel to the fiber axis. Each platelet has one crystallographic orientation, with the c- axis corresponding to the thin direction. These crystallites commonly join via large-angle (001) twist boundaries, where the ab-planes are parallel but rotated about the c-axis with respect to the next crystallite. More complicated boundaries are also observed.

• OSTI ID: 5877606
• Report Number(s): CONF-900944-; CODEN: IEMGA
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 27:2; Conference: 1990 applied superconductivity conference, Snowmass, CO (United States), 24-28 Sep 1990; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH OXIDES
CRYSTAL STRUCTURE
GRAIN BOUNDARIES
MORPHOLOGY
SUPERCONDUCTORS
CALCIUM OXIDES
COPPER OXIDES
STRONTIUM OXIDES
CRYSTALLOGRAPHY
FIBERS
SCANNING ELECTRON MICROSCOPY
TRANSMISSION ELECTRON MICROSCOPY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRON MICROSCOPY
MICROSCOPY
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies