Method of manufacturing an encased wire of high critical tempera

Details Method of manufacturing an encased wire of high critical tempera Method of manufacturing an encased wire of high critical tempera

1994-06-09

1997-01-14

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Post sintering operation

419 5, 419 22, 419 24, 419 28, 419 30, 419 45, 419 56, B22F 316, C21D 100

Patent

active

055949320

ABSTRACT:
In a method for the manufacture of an encased high critical temperature superconducting wire by the "powder in tube" method, prior to the introduction of a compressed rod of superconducting material into a silver tube, the rod is heat treated so that grains of unwanted phase are reabsorbed. The tube can be drawn more easily, and strands can be produced with a regular geometry and no defects. The wire is constituted by 15 .mu.m to 20 .mu.m thick filaments (30) with a form factor of more than 60.

REFERENCES:
patent: 5087604 (1992-02-01), Shiga et al.
patent: 5100867 (1992-03-01), Gunzelman et al.
patent: 5283232 (1994-02-01), Kohno et al.
patent: 5330969 (1994-07-01), Finnemore et al.
patent: 5369089 (1994-11-01), Sato et al.
patent: 5395821 (1995-03-01), Kroeger et al.

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