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PART COATED WITH A NON-HYDROGENATED AMORPHOUS CARBON COATING ON AN UNDERCOAT COMPRISING CHROMIUM, CARBON AND SILICON
PART COATED WITH A NON-HYDROGENATED AMORPHOUS CARBON COATING ON AN UNDERCOAT COMPRISING CHROMIUM, CARBON AND SILICON
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机译:在包含铬,碳和硅的底涂层上涂有非氢化非晶碳涂层的部分
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摘要
The present application relates to a part comprising a metal substrate, a non-hydrogenated amorphous ta-C or a-C carbon coating that coats the substrate, and an undercoat which is based on chromium (Cr), carbon (C) and silicon (Si) and is disposed between the metal substrate and the amorphous carbon coating and to which the amorphous carbon coating is applied, characterized in that the undercoat comprises, at its interface with the amorphous carbon coating, a ratio of silicon in atomic percent to chromium in atomic percent (Si/Cr) of 0.3 to 0.60, and a ratio of carbon in atomic percent to silicon in atomic percent (C/Si) of 2.5 to 3.5.
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