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Open AccessReview

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

1
School of Measurement and Testing Engineering, China Jiliang University, Hangzhou 310018, China
2
College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(3), 233; https://doi.org/10.3390/coatings10030233
Received: 15 February 2020 / Revised: 28 February 2020 / Accepted: 29 February 2020 / Published: 3 March 2020
Nano-coating has been a hot issue in recent years. It has good volume effect and surface effect, and can effectively improve the mechanical properties, corrosion resistance and wear resistance of the coatings. It is important to improve the wear resistance of the material surface. The successful preparation of nano-coatings directly affects the application of nano-coatings. Firstly, the preparation methods of conventional surface coatings such as chemical vapor deposition and physical vapor deposition, as well as the newly developed surface coating preparation methods such as sol-gel method, laser cladding and thermal spraying are reviewed in detail. The preparation principle, advantages and disadvantages and the application of each preparation method in nano-coating are analyzed and summarized. Secondly, the types of nano-coating materials are summarized and analyzed by inorganic/inorganic nanomaterial coatings and organic/inorganic nanomaterial coatings, and their research progress is summarized. Finally, the wear-resistant mechanism of nano-coatings is revealed from three aspects: grain refinement, phase transformation toughening mechanism and nano-effects. The application prospects of nano-coatings and the development potential combined with 3D technology are prospected. View Full-Text
Keywords: nano-coating; wear-resistant; coating technology; nano-coating material nano-coating; wear-resistant; coating technology; nano-coating material
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MDPI and ACS Style

Gu, Y.; Xia, K.; Wu, D.; Mou, J.; Zheng, S. Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review. Coatings 2020, 10, 233.

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