Accelerated formation of 110 K high T sub c phase in the Ca- and Cu-rich Bi-Pb-Sr-Ca-Cu-O system

Journal Article · Mon Feb 19 04:00:00 EST 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103315· OSTI ID:7171505

Huang, Y T; Liu, R G; Lu, S W; Wu, P T ^[1]; Wang, W N ^[2]

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1. Materials Research Laboratories, Industrial Technology Research Institute, Chutung, Hsinchu 31015, Taiwan, (Republic of China)
2. Chung Shan Institute of Science and Technology, Lung-Tan, P. O. Box 90008, Taoyuan 32526, Taiwan, (Republic of China)

The crystal structure and superconducting properties of the Bi-Pb-Sr-Ca-Cu-O system with Ca- and Cu-rich nominal composition were investigated. A nearly single-phased 110 K high {ital T}{sub {ital c}} superconductor can be obtained with 852 {degree}C/20 h sintering from the starting composition of Bi{sub 1.7}Pb{sub 0.4}Sr{sub 1.6}Ca{sub 2.4}Cu{sub 3.6}O{sub {ital y}}. X-ray diffraction patterns, resistivity measurement, diamagnetic susceptibility results, and scanning electron micrographs all indicate that the Ca- and Cu-rich nominal composition would result in better superconducting properties than those of Ca:Sr=1:1 Bi-Pb-Sr-Ca-Cu-O compounds in a much shorter sintering time.

• OSTI ID: 7171505
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:8; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FABRICATION
INFORMATION
LEAD COMPOUNDS
LEAD OXIDES
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MICROSCOPY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHASE STUDIES
PHYSICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SINTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
X-RAY DIFFRACTION