Self-supporting multilayer films having a diamond-like...

B - Operations – Transporting – 32 – B

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B32B 18/00 (2006.01)

Patent

CA 2625684

Disclosed are a variety of self-supporting, multilayer carbon films that include a layer of both a non-diamond-like carbon, for example, graphitic or amorphous carbon (or a-C), and a layer of diamond-like carbon (DLC). A wide range of multilayer configurations may be constructed depending on the particular combination of properties desired in the final product including, for example, a tri-layer construction including a single DLC layer sandwiched between two layers of amorphous carbon. Also disclosed are example embodiments of methods for producing such composite multilayer films that include preparing an appropriate substrate to include a deposition surface of sufficient smoothness, applying a parting or release agent to the deposition surface, depositing a plurality of layer carbon layers including both an amorphous carbon layer and a DLC layer to form the composite carbon film and removing the composite carbon film from the substrate.

L'invention concerne divers films de carbone multicouches autoportants qui comprennent à la fois une couche d'un carbone qui n'est pas sous forme de diamant amorphe, par exemple de carbone graphitique ou amorphe (ou a-C), et une couche de carbone sous forme de diamant amorphe (DLC). Une large gamme de configurations multicouches peut être construite en fonction de l'association particulière des propriétés souhaitées dans le produit final comme, par exemple, une construction à trois couches comprenant une seule de couche de DLC prise en sandwich entre deux couches de carbone amorphe. L'invention concerne également des modes de réalisation illustratifs de procédés servant à produire de tels films composites multicouches lesquels consistent à préparer un substrat approprié pour qu'il comprenne une surface de dépôt ayant un caractère lisse suffisant, appliquer un agent de séparation ou de démoulage sur la surface de dépôt, déposer une pluralité de couches de carbone en couches comprenant à la fois une couche de carbone amorphe et une couche de DLC pour former le film de carbone composite et enlever le film de carbone composite du substrat.

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