Nano laminated coating as well as preparation method and application thereof
Through HiPIMS synchronous pulse bias technology and oxygen plasma doping, a nano-laminated Cr coating was prepared, which solved the problems of uneven coating quality and environmental pollution in traditional electrochromic plating technology, and significantly improved the corrosion resistance of the coating. Ensures the health and environmental safety of workers.
CN119194345APending Publication Date: 2024-12-27NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI
Patent Information
- Application Number
- CN202411161781.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2024-12-27
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Figure CN119194345A_ABST
Abstract
The invention provides a nanometer laminated coating and a preparation method and application thereof, and belongs to the technical field of surface treatment.The nanometer laminated coating is formed by doping 1-25 at.% of an O element in a Cr coating, O atoms exist in Cr metal lattices in an interstitial solid solution mode, under the microscopic section morphology, the nanometer laminated coating is of a columnar crystal structure, and the thickness of the nanometer laminated coating is 1-25 at. Compared with the prior art, oxygen is introduced to be dissolved into Cr crystal lattices in a solid mode, a nanometer laminated structure is formed, on the premise that heterogeneous elements and heterogeneous interfaces are not introduced, the grain size can be refined through doping of a small amount of oxygen, and therefore the number of grain boundaries is increased, and the permeation speed of corrosive ions is effectively prevented; therefore, the corrosion resistance of the coating is improved.
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Citation Information
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