Metal strip for epitaxial coating and method for producing...

B - Operations – Transporting – 32 – B

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B32B 15/00 (2006.01) C30B 23/02 (2006.01) C30B 29/22 (2006.01) H01L 39/24 (2006.01)

Patent

CA 2472185

The invention relates to a metal strip made from a layer composite for epitaxial coating and a method for production thereof. The aim of the invention is to produce such a high-strength metal strip and a corresponding production method. Said metal strip is a layer composite made from at least one biaxially-textured base layer of the metals Ni, Cu, Ag or alloys thereof and at least one further metallic layer, whereby the individual further metallic layers are made from one or several intermetallic phases or from a single metal in which one or several intermetallic phases are contained. The production method is characterised in that the formation of intermetallic phases at the end of the production process is carried out by means of interdiffusion of elements provided in the layers. Such strips can be advantageously used, for example, as support strips for the deposition of biaxial textured layers made from YBa2Cu3Ox high temperature superconducting material. Said high temperature superconductors are particularly suitable for application in energy technology.

L'invention concerne une bande de métal à base de composite interlaminaire pour revêtements épitaxiaux et un procédé permettant de la produire. L'invention vise à mettre au point une bande de métal très résistante de ce type et un procédé de production correspondant. La bande de métal selon l'invention est un composite interlaminaire comprenant au moins une couche de base texturée de manière biaxiale comprenant les métaux Ni, Cu, Ag ou leurs alliages et au moins une autre couche métallique. Les autres couches métalliques individuelles comprennent une ou plusieurs phases intermétalliques ou un métal dans lequel sont contenues une ou plusieurs phases intermétalliques. Ledit procédé de production se caractérise en ce que la formation de phases intermétalliques est effectuée à la fin du processus de production par interdiffusion des éléments présents dans les couches. Les bandes de ce type s'utilisent par exemple comme bande porteuse pour le dépôt de couches texturées de manière biaxiale, à base de matériau supraconducteur haute température YBa¿2?Cu¿3?O¿x?. Ces supraconducteurs haute température s'utilisent notamment pour des applications relevant de la technique énergétique.

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