Main problems and perspectives of the synthesis of nanocomposite coatings on the surface of complex-shaped components

International Conference on Advanced Materials and New Technologies in Modern Materials Science 2015

Brzhozovskii, B.^1 ; Martynov, V.^1 ; Zinina, E.^1 ; Brovkova, M.^1

School of Electrical and Mechanical Engineering, Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya Ul., Saratov

410054, Russia^1

关键词: Amorphous layer;    Complex shaped component;    Dissipative properties;    Low temperature plasmas;    Nano-composite coating;    Original structures;    Synthesis process;    Three-body recombination;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/116/1/012008/pdf
DOI  :  10.1088/1757-899X/116/1/012008

来源: IOP

【 摘 要 】

The main methods for composite coating synthesis in the surface layer of complex-shaped workpiece with dissipative properties have been investigated in this study. The problem of their application can be solved by using low-temperature plasma of combined discharge. The plasma is formed directly around the treated surface, which allows the use of the maximum amount of energy transmitted by its ions for the synthesis process itself. The main mechanism is the synthesis of three-body recombination, in which surface structures are heated to temperatures that change the phase of their constituent atoms. As a result, the original structure of the surface layer of the workpiece is transformed into a composite structure consisting of nanoclusters of ∼ 50 ... 100 nm in size and an amorphous layer of particles which acts as binder, and gradient transition from the coating to the base material filling the microvoids.