Method of preparing Bi oxide superconducting wire

Details Method of preparing Bi oxide superconducting wire Method of preparing Bi oxide superconducting wire

1995-03-06

1998-09-15

Gorski, Joseph M.

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

Process of making wire, tape, cable, coil, or fiber

29599, 241 20, 505492, 505501, H01L 3924

Patent

active

058078088

ABSTRACT:
In order to obtain a Bi--Sr--Ca--Cu--O or Bi--Pb--Sr--Ca--Cu--O oxide superconducting wire, raw material powder is pulverized to remove particles of non-superconducting phases having large particle sizes based on difference in particle size, and thereafter the raw material powder is covered with a sheath of silver or silver alloy, so that the sheath is subjected to plastic working and the raw material powder covered with the sheath is sintered.

REFERENCES:
patent: 4697744 (1987-10-01), Wada et al.
patent: 4721256 (1988-01-01), Lyman
patent: 4980964 (1991-01-01), Boeke
Metallurgy, Johnson et al., 1977, p. 345.
Hikata T., et al., "Ag-Sheathed Bi-Ph-Sr-Ca-Cu-O Superconducting Wires with High Critical Density," Japanese Journal of Applied Physics, vol. 28, No. 1, Jan., 1989, pp. L82-84.
Sekine, H. et al., "Studies on the Rare Earth Oxide Superconductors Fabricated by Sintering," IEEE, vol. 25, No. 2, Mar. 1989, pp. 2164-2167.

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