C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 14/00 (2006.01) A61L 27/30 (2006.01) C23C 16/02 (2006.01) C23C 16/30 (2006.01) C23C 28/04 (2006.01)
Patent
CA 2277977
The invention relates to a substrate. (1) covered at least in part with a coating (6) comprising a number of layered structures (2), each such structure comprising a first diamond like nanocomposite composition layer (3) closest to the substrate, which composition comprises interpenetrating networks of a.C:H and a.Si:O, a second diamond like carbon composition layer (4) on top of said first layer, a transition layer (5) between said first and second layer comprising a mixture of said diamond like nanocomposite and said diamond like carbon composition; and when the number of layered structures (2) is greater than one, then the coating (6) comprises an intermediate layer (7) comprising a mixture of said diamond like carbon and diamond like nanocomposite compositions sandwiched between each pair of consecutive layered structures (2). It also relates to a process for manufacturing such a covered substrate.
L'invention concerne un substrat (1) recouvert au moins en partie d'un revêtement (6) comprenant plusieurs couches (2). Chacune de ces couches comprend une première couche (3) de composition nanocomposite de type diamant, plus près du substrat, comportant des réseaux d'interpénétration de a-C:H et a-Si:O; une deuxième couche (4) de composition de carbone de type diamant placée sur la première couche; une couche de transition (5) entre les première et deuxième couches, comprenant un mélange de la composition nanocomposite de type diamant et de la composition de carbone de type diamant. Lorsque le nombre de couches (2) est supérieur à un, alors le revêtement (6) comprend une couche intermédiaire (7) comportant un mélange de la composition de carbone de type diamant et de la composition nanocomposite de type diamant et placée entre chaque paire de couches consécutives (2). L'invention traite aussi d'un procédé pour fabriquer un substrat recouvert de ce type.
Neerinck Dominique
Persoone Peter
Kirby Eades Gale Baker
N.v. Bekaert S.a.
Sulzer Metaplas Gmbh
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