Process of producing oxide superconductor

Details Process of producing oxide superconductor Process of producing oxide superconductor

1993-06-17

1995-02-14

Lieberman, Paul

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

With melting

505742, 505780, 505500, 252518, 252521, 164122, H01B 100, H01L 3900

Patent

active

053896041

ABSTRACT:
To ensure a well-oriented crystal structure, there is provided a process of producing an oxide superconductor of a Y--Ba--Cu--O system with a composition having an atomic ratio Y:Ba:Cu of 1.0-2.0:2.0-2.5:3.0-3.5, the process comprising the steps of: preparing a semimelt including solid and liquid phases and consisting of Y, Ba, Cu and O in the atomic ratio; and solidifying the semimelt to form the oxide superconductor by so controlling a moving speed of a solidification front to have two components of different values in two perpendicularly intersecting directions.

REFERENCES:
patent: 5262391 (1993-11-01), Morita et al.
S. Jin et al., "High Critical Currents in Y-Ba-Cu-O Superconductors", Appl. Phys. Lett. 52(24), 13 Jun. 1988, pp. 2074-2076.
M. Murakami, "Melt Processing of YBaCuO Superconductors and Critical Currents", Mod. Phys. Lett. B vol. 4, No. 3, (1990), pp. 163-179.

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