Structure and properties of coating of the system SnO2-In2O3-Ag-N formed on copper by the complex method
The aim of this work is to analyze the structure and properties of coating of the SnO2-In2O3-Ag-N composition formed on copper by a complex method combining electroexplosive spraying, irradiation with a pulsed electron beam, and subsequent nitriding in the plasma of a low-pressure gas discharge. It is shown that the thickness of the coating is ≈ 100 μm. The wear resistance of a coated copper specimen exceeds the wear resistance of uncoated copper by a factor of 2.8. The friction coefficient of coated specimens μ = 0.479 is less than the coefficient of friction of copper without coating μ = 0.679 ± 0.048 by a factor of 1.4. It was found that the hardness of the coating increases as it approaches the substrate and reaches a maximum value of ≈ 1400 ± 98 MPa (the hardness of the substrate is 1270 MPa). Micro X-ray spectral analysis showed that the main chemical element of the coating is silver; copper, tin, indium, oxygen and nitrogen are present in much smaller amounts. It was established by X-ray phase analysis that the main phases of the coating are solid solutions based on copper and silver.
Keywords
coating, complex method, electroexplosive spraying, nitriding, pulsed electron beam, structure, propertiesAuthors
Name | Organization | |
Ivanov Yu.F. | Institute of High Current Electronics SB RAS | yufi55@mail.ru |
Pochetukha V.V. | Siberian State Industrial University | v.pochetuha@mail.ru |
Romanov D.A. | Siberian State Industrial University | romanov_da@physics.sibsiu.ru |
Gromov V.E. | Siberian State Industrial University | gromov@physics.sibsiu.ru |
Peregudov O.A. | Omsk State Technical University | olegomgtu@mail.ru |
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