Fundamental material aspects underlying the preparation of high-temperature superconducting (Bi,Pb){sub 2+x}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10+d} ceramics

Journal Article · Thu May 01 04:00:00 EDT 1997 · Journal of the American Ceramic Society

OSTI ID:512055

Majewski, P J; Kaesche, S; Aldinger, F ^[1]

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1. Max-Planck-Inst. fuer Metallforschung, Stuttgart (Germany). Pulvermetallurgisches Lab.

Phase equilibria of the quasi-quinary system Bi{sub 3}O{sub 3}-PbO-SrO-CaO-CuO were studied between 650 and 900 C in air with emphasis on the high-temperature superconducting phase (Bi,Pb){sub 2+x}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10+d} (2223). The 2223 phase lies in equilibrium with a number of nonsuperconducting phases and also with the superconducting phase (Bi,Pb){sub 2}Sr{sub 2}-CaCu{sub 2}O{sub 8+d} (2212). The single-phase region was found to be very limited. The Pb solubility of the 2223 phase is strongly temperature dependent. The phase relations are very sensitive to variations of the cation concentration and temperature. This effect significantly influences the preparation of 2223 ceramics.

• OSTI ID: 512055
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 5 Vol. 80; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
EQUILIBRIUM
FABRICATION
HIGH-TC SUPERCONDUCTORS
LEAD OXIDES
PHASE STUDIES
STRONTIUM OXIDES
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K