Synthesis of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x superconductor
Abstract
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.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 870665
- Patent Number(s):
- 5569641
- Assignee:
- University of California (); Los Alamos National Laboratory ()
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- synthesis; pb; sr; cu; superconductor; two-powder; processes; superconducting; -2223; ag-clad; wires; oxide-powder-in-the-robe; provided; precursor; powder; nominal; stoichiometry; cacuo; solution-synthesized; mixture; 45; 55; cao; oxide; mixtures; tapes; well-aligned; grains; reproducible; critical; current; densities; range; 20; 000; 26; cm; 75; self-field; annealing; 200; hours; obtained; precursor mixture; current densities; critical current; precursor powder; precursor mixtures; oxide precursor; superconducting tape; /505/252/423/
Citation Formats
Smith, Michael G. Synthesis of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x superconductor. United States: N. p., 1996.
Web.
Smith, Michael G. Synthesis of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x superconductor. United States.
Smith, Michael G. Mon .
"Synthesis of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x superconductor". United States. https://www.osti.gov/servlets/purl/870665.
@article{osti_870665,
title = {Synthesis of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x superconductor},
author = {Smith, Michael G},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}
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Works referenced in this record:
Synthesis of Ag-clad (Bi,Pb)-2223 tapes by an alternative precursor route
journal, October 1994
- Smith, M. G.; Willis, J. O.; Peterson, D. E.
- Physica C: Superconductivity, Vol. 231, Issue 3-4