Synthesis of Bi{sub 1.8}Pb{sub 0.4}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} superconductor
Patent
·
OSTI ID:392650
Two-powder processes for the synthesis of superconducting (Bi, Pb)-2223/Ag-clad wires by the oxide-powder-in-the-robe are provided. The first precursor powder, of nominal stoichiometry CaCuO{sub x}, is a solution-synthesized mixture of Ca{sub 0.45}Cu{sub 0.55}O{sub 2} and CaO. Using these oxide precursor mixtures, superconducting tapes with well-aligned grains and reproducible critical current densities J{sub c} in the range of 20,000 to 26,000 A/cm{sup 2} at 75 K in self-field after annealing less than 200 hours were obtained. 2 figs.
- Research Organization:
- Univ. of California (United States)
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- Los Alamos National Lab., NM (United States)
- Patent Number(s):
- US 5,569,641/A/
- Application Number:
- PAN: 8-419,485; TRN: 96:028500
- OSTI ID:
- 392650
- Resource Relation:
- Other Information: PBD: 29 Oct 1996
- Country of Publication:
- United States
- Language:
- English
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Synthesis of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x superconductor
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Enhancement of critical currents in (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub y} (Bi-2223) superconducting tapes.
Patent
·
Mon Jan 01 00:00:00 EST 1996
·
OSTI ID:392650
Effect of sintering temperature and cooling rate on microstructure, phase formation, and critical current density of Ag-sheathed Bi{sub 1.8}Pb{sub 0.4}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} superconducting tapes
Journal Article
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Sun Feb 01 00:00:00 EST 1998
· Journal of Materials Research
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OSTI ID:392650
Enhancement of critical currents in (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub y} (Bi-2223) superconducting tapes.
Conference
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Wed Nov 11 00:00:00 EST 1998
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OSTI ID:392650