Substrates for superconductors

C - Chemistry – Metallurgy – 22 – F

Patent

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148/35, 356/56

C22F 1/08 (2006.01) C22C 9/06 (2006.01) C30B 23/02 (2006.01) C30B 25/02 (2006.01) C30B 25/18 (2006.01) H01L 39/12 (2006.01) H01L 39/24 (2006.01)

Patent

CA 2305571

An alloy capable of forming a (100) [001] cube-texture by thermo-mechanical techniques has 5-45 atomic percent nickel with the balance being copper. The alloy is useful as a conductive substrate for superconducting composites where the substrate is coated with a superconducting oxide. A buffer layer can optionally be coated on the substrate to enhance deposition of the superconducting oxide. The method for producing the alloy can include weighing the metal (101), melting and cooling the constituents (102). The alloy can include melted (103) and shaped (104). The alloy can then be mechanically deformed to a smaller size and recrystallize (105) then deformed in an axially manner (106) and planar deformation (107). The final step is heat treated (108).

Alliage capable de former une structure cubique [001] (100) en ayant recours à des techniques thermomécaniques, avec 5-45 pour-cent atomique de nickel et le reste en cuivre. L'alliage est utilisé comme substrat conducteur pour des composites supraconducteurs lorsque le substrat est revêtu d'un oxyde supraconducteur. Une couche tampon peut éventuellement être appliquée sur le substrat pour accroître les qualités de dépôt de l'oxyde supraconducteur. Le procédé de fabrication de l'alliage comprend le pesage du métal (101), la fusion et le refroidissement des constituants (102). L'alliage est refondu (103) et mis en forme (104) pour être ensuite déformé mécaniquement à de plus faibles dimensions et recristallisé (105), puis déformé axialement (106) et soumis à une déformation plane (107). Dans l'étape finale, l'alliage est soumis à un traitement thermique (108).

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