Synthesis of Bi-Pb-Ca-Sr-Cu-O superconductive material

Details Synthesis of Bi-Pb-Ca-Sr-Cu-O superconductive material Synthesis of Bi-Pb-Ca-Sr-Cu-O superconductive material

1990-02-12

1991-10-15

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252521, 423 87, 423604, 423617, 423618, 501123, 505782, C01F 1102, C01G 302, C01G 2102, C01G 2900

Patent

active

050574884

ABSTRACT:
A reactant particulate mixture comprised of Bi.sub.2 CaSr.sub.2 Cu.sub.2 O.sub.8.+-.x where x ranges from 0 to 0.5, Ca.sub.2 CuO.sub.3, cupric oxide and lead oxide is formulated and reacted to produce superconductive Bi.sub.2-y Pb.sub.y Ca.sub.2 Sr.sub.2 Cu.sub.3 O.sub.10.+-.z where y ranges from 0.1 to 0.5 and z ranges from zero to less than 1.

REFERENCES:
patent: 3355282 (1967-11-01), Kudo
patent: 4880771 (1989-11-01), Cava et al.
patent: 4942152 (1990-07-01), Itozaki
Liu, "Resistive, Magnetic, and Structural Studies of Tl.sub.0.5 Pb.sub.0.5 . . . ", Appl. Phys. Lett., v. 55 (199), Nov. 6, 1989, pp. 2029-2031.
Rao, "Investigation of Superconducting Bismuth Cuprates . . . ", Phase Transistions, vol. 19, Dec. 1989, pp. 201.varies.211.
Weber, "Processing Relationsihps in YBa.sub.2 Cu.sub.3 O.sub.7 Superconductors", Mat. Res. Soc. Symp. Proc, vol. 99, Nov. 1987, pp. 627-630.
Durny, "Absorption Component of the Magnetic Susceptibility . . . ", Mat. Res. Soc. Symp. Proc., vol. 99, Nov. 1987, pp. 849-852.

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