Manufacturing method of superconducting material and product and

Details Manufacturing method of superconducting material and product and Manufacturing method of superconducting material and product and

1990-09-12

1992-01-14

Gorski, Joseph M.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

29599, 241 3, 241 23, 241 29, 241101B, H01L 3924

Patent

active

050810723

ABSTRACT:
A manufacturing method of a superconducting material having the steps of: milling and mixing a powderly primary material in a casing of a dry type milling mixer; heat-processing the primary material obtained from the milling/mixing step; and again milling and mixing the primary material obtained from the heat-processing step in the casing of the milling mixer so as to obtain a secondary material. The milling mixer includes a casing for holding the primary material therein and friction-pulverizing mixing elements for frictionally pulverizing, stirring and mixing the primary material inside the casing. The two milling/mixing steps are effected under a high-speed rotation of the casing where a centrifugal force resulting from the casing rotation presses the primary material against an inner surface of the casing and a layer of the material formed on the surface is frictionally pulverized, stirred and mixed by the friction-pulverizing mixture elements.

REFERENCES:
patent: 513197 (1894-01-01), Pamphilon
patent: 1426118 (1922-08-01), Sonsthagen
patent: 2210467 (1940-08-01), Smith
patent: 2524884 (1950-10-01), Clerk
patent: 2578180 (1951-12-01), Edwards
patent: 2589917 (1952-03-01), Zuckert

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