Superconducting magnetic shield and process for preparing...

G - Physics – 12 – B

Patent

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Details

347/7, 26/112.1,

G12B 17/02 (2006.01) C21D 8/12 (2006.01) C22F 1/00 (2006.01) H01F 27/36 (2006.01) H05K 9/00 (2006.01)

Patent

CA 2028242

The present invention is characterized by a superconducting magnetic shield comprising a seamless, bottomless hollow body or a seamless hollow body having a bottom, said hollow body having a wall comprised of, in the thickness direction thereof, at least one laminate structure comprising a unit of two layers of an Nb-Ti-base alloy layer and a metal layer having a high conductivity or three layers of the above two layers and a barrier layer sandwiched therebetween; a process for preparing a magnetic shield which comprises subjecting the magnetic shielding material to a heat treatment after deep drawing; and a process for preparing the magnetic shielding material.

a présente invention est caractérisée par un blindage magnétique supraconducteur comprenant un corps creux sans joint, avec ou sans fond, ledit corps creux étant constitué d'une paroi composée, transversalement, d'au moins une structure stratifiée faite d'un ensemble de deux couches d'un alliage à base de Nb et de Ti et d'une couche métallique à conductivité élevée, ou de trois couches de l'ensemble de deux couches susmentionné, entre lesquelles est intercalée une couche barrière; par un procédé de préparation d'un blindage magnétique consistant à soumettre le matériau de blindage magnétique à un traitement thermique après un formage profond; et par un procédé de préparation du matériau de blindage magnétique.

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