Preparation of the 110 K single phase superconductor Bi sub 1. 6 Pb sub 0. 4 Ca sub 2 Sr sub 2 Cu sub 3 O sub x using a precursor matrix reaction method

Journal Article · Sat Jun 01 00:00:00 EDT 1991 · Journal of Materials Research; (USA)

DOI:https://doi.org/10.1557/JMR.1991.1160· OSTI ID:5623440

Wang, Z; Statt, B W ^[1]; Lee, M J.G. ^[2]; Bagheri, S; Rutter, J ^[3]

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1. Department of Physics, University of Toronto, Toronto, Ontario, Canada (CA)
2. Department of Physics and Scarborough College, University of Toronto, Toronto, Ontario, Canada (CA)
3. Department of Metallurgy and Materials Science, University of Toronto, Toronto, Ontario, Canada (CA)

Nearly single phase sintered samples of the lead-doped high-{ital T}{sub {ital c}} oxide superconductor of nominal composition Bi{sub 1.6}Pb{sub 0.4}Ca{sub 2}Sr{sub 2}Cu{sub 3}O{sub {ital x}} have been prepared using a precursor matrix reaction method. The experimental results indicate that in samples annealed under optimum conditions (200 h at 855 {degree}C) the volume fraction of impurity phases is only about 3%. If the optimum annealing time is exceeded, the high-{ital T}{sub {ital c}} phase begins to decompose into the low-{ital T}{sub {ital c}} phase and nonsuperconducting phases. It is found that the precursor reaction matrix method minimizes loss of lead during processing.

• OSTI ID: 5623440
• Journal Information: Journal of Materials Research; (USA), Vol. 6:6; ISSN 0884-2914
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH OXIDES
SYNTHESIS
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
LEAD OXIDES
STRONTIUM OXIDES
ANNEALING
CHEMICAL REACTIONS
POLYCRYSTALS
VERY HIGH TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTALS
HEAT TREATMENTS
LEAD COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties