The microstructure of a Bi-Ca-Sr-Cu-O high-Tcsuperconductor produced by rapid solidification

Authors :: Zhi-yi Liu
Eva Olsson
Ping Liu
G. L. Dunlop
M Knutson
Source :: Superconductor Science and Technology. 1:254-259
Publication Year :: 1989
Publisher :: IOP Publishing, 1989.
Abstract: The microstructure of a high-Tc superconducting Bi-Ca-Sr-Cu-O ceramic, produced by rapid solidification and annealing, was investigated by analytical transmission electron microscopy. It was found that the predominant superconducting phase in the polyphase material corresponded to Bi2CaSr2Cu2O8+ delta . This phase formed during annealing at 860 degrees C by crystallisation of an amorphous material produced by rapid solidification. Evidence was obtained for variation of interplanar spacings and the existence of special 'c-plane grain boundaries' within the high-Tc phase.

Subjects :: Superconductivity
Materials science
Annealing (metallurgy)
Metals and Alloys
Analytical chemistry
Condensed Matter Physics
Microstructure
law.invention
Amorphous solid
law
Transmission electron microscopy
visual_art
Materials Chemistry
Ceramics and Composites
visual_art.visual_art_medium
Grain boundary
Ceramic
Electrical and Electronic Engineering
Crystallization

Full Text Access

Tools