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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 · · Journal of Materials Research; (USA)
;  [1];  [2]; ;  [3]
  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)
+ Show Author Affiliations
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), Journal Name: Journal of Materials Research; (USA) Vol. 6:6; ISSN JMREE; ISSN 0884-2914
Country of Publication:
United States
Language:
English

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Related Subjects

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