Effect of Pb and Sb substitutions on superconducting Bi-Sr-Ca-Cu-O prepared by oxidation of liquid-quenched precursor alloys

Journal Article · Mon Oct 02 04:00:00 EDT 1989 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.102282· OSTI ID:5486233

Luo, J S; Michel, D; Chevalier, J ^[1]

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1. Centre d'Etudes de Chimie Metallurgique, C.N.R.S., 15, rue Georges Urbain 94407 Vitry Cedex, France (FR)

We have produced a series of precursor alloys (Bi{sub 1{minus}{ital x}}Pb{sub {ital x}}){sub 2} Sr{sub 2}Ca{sub 2}Cu{sub 3} (0{le}{ital x}{le}0.5) by planar flow casting. After oxidation and annealing in air, essentially 2212 and 2223 phases are present. The proportion of the 2223 phase increases as {ital x} increases from 0 to 0.3, at which composition mainly the 2223 phase is obtained with {ital T}{sub {ital c}} {sub {rho}=0} =105 K, and {ital J}{sub {ital c}(100 K)} {approx}200 mA/cm{sup 2} . More Pb addition reduces the amount of the 2223 phase and yields Ca{sub 2} PbO{sub 4}. With Sb addition, a higher {ital T}{sub (onset)} near 125 K is obtained for (Bi{sub 0.85}Pb{sub 0.10}Sb{sub 0.05}){sub 2} Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub {ital y}}, corresponding to a multiphase material. A semiconducting behavior is observed when Sb{ge}10%.

• OSTI ID: 5486233
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 55:14; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
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
ANNEALING
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
DATA
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
HEAT TREATMENTS
INFORMATION
LEAD COMPOUNDS
LEAD OXIDES
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE