Crystallographically textured metal substrate,...

Details Crystallographically textured metal substrate,... Crystallographically textured metal substrate,...

C - Chemistry, Metallurgy

22

C

C22C 38/08 (2006.01) C23C 30/00 (2006.01)

Patent

CA 2698126

The invention relates to a crystallographically textured metal substrate (1) that comprises a connection surface (2) and a surface (3) for receiving a thin layer deposit, said crystallographically textured metal substrate being made of an alloy having a cubic crystalline system with centred faces and a cubic crystallographic structure {100} representing a majority, the surface for receiving the thin layer deposit (3) including grains (4) having for the majority crystallographic planes {100} parallel to the surface (3) for receiving a thin layer deposit. According to the invention, the alloy is an iron-nickel alloy having the following composition in wt % relative to the total weight of said alloy: Ni = 30 %, Cu < 15 %, Cr =15 %, Co =12 %, Mn = 5 %, S < 0.0007 %, P < 0.003 %, B < 0.0005 %, Pb < 0.0001 %, the percentages of nickel, chromium, copper, cobalt and manganese being such that the alloy meets the following condition 34 % < (Ni + Cr + Cu/2 + Co/2 + Mn), the alloy containing up to 1 wt % of one or more deoxidising elements selected from silicon, magnesium, aluminium and calcium, the balance of the elements constituting the alloy consisting of iron and impurities.

L'invention concerne un substrat métallique texture cristallographiquement (1) comprenant une surface de connexion (2) et une surface (3) destinée à accueillir un dépôt de couche mince, ledit substrat métallique texture cri stallographiquement (1) étant constitué d'un alliage présentant un système cristallin cubique à faces centrées et une texture cristallographique cube {100} <001> majoritaire, la surface destinée à accueillir le dépôt de couche mince (3) comprenant des grains (4) présentant majoritairement des plans cristallographiques {100} parallèles à la surface (3) destinée à accueillir un dépôt de couche mince. Selon l'invention, l'alliage est un alliage fer-nickel ayant une composition comprenant, en % en poids par rapport au poids total dudit alliage : Ni >= 30 %, Cu < 15 %, Cr <=15 %, Co <=12 %, Mn <= 5 %, S< 0,0007 %, P < 0,003 %, B < 0,0005 %, Pb < 0,0001 %, les pourcentages en nickel, chrome, cuivre, cobalt et manganèse étant tels que l'alliage satisfait la condition suivante : 34 % < (Ni + Cr + Cu/2 + Co/2 + Mn), et l'alliage comprend jusqu'à 1 % en poids d'un ou plusieurs éléments désoxydants choisis parmi le silicium, le magnésium, l'aluminium et le calcium, le reste des éléments constituant l'alliage étant du fer et des impuretés.

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