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US 12,698,556 B2Granted
Part coated with a carbon-based layer
AssigneeHydromecanique Et Frottement
InventorsMarie-Alix Leroy, Michaël Ougier
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Abstract
The invention relates to a metal part comprising a metallic substrate (S) having an outer surface coated with a layer of carbon-based material (M). According to the invention, the layer of carbon-based material: —is of “DLC” amorphous carbon type, from the a-C family; • comprises less than 3 at % of oxygen within the layer of carbon-based material; • does not contain hydrogen, nitrogen, or doping elements.
Claims19
A metal part comprising a metallic substrate(S), having an outer surface coated with a carbon-based material (M) outer layer, wherein the carbon-based material layer:
- is an amorphous diamond-like carbon (“DLC”) and an “a-C” carbon;
- comprises oxygen, in an amount of at most 3 at % of oxygen within the carbon-based material layer;
- and
- does not contain hydrogen, nitrogen, or doping elements,
- and wherein the substrate is a plate with a thickness between 10 μm and 1000 μm.
2 more elements
Dependencies are inferred from the claim text.