Structure and Mechanical Properties of Microwave-Absorbing Co-C Coatings Obtained by Magnetron Sputtering
Prokhorenkova N. Zhilkashinova A. Abilev M. Ocheredko I. Pavlov A. Mussabekova A. Kuanyshbekov T. Zhilkashinova A.
October 2024Multidisciplinary Digital Publishing Institute (MDPI)
Coatings
2024#14Issue 10
This article is devoted to the study of microwave-absorbing properties of Co-C coating applied by magnetron sputtering. This article presents the main results of the manufacturing of a Co-C coating by magnetron sputtering, and the evaluation of experimental and computational research data on the relationship between the structure and properties of the obtained films. The structure of Co-C systems has been modeled to control the resulting structures using X-ray diffraction analysis. The structural-phase state of the resulting thin-film Co-C systems and the microwave-absorbing properties of coatings were studied using the transmission line method, consisting of a vector network analyzer, an air coaxial line, a software program, and an external computer. It has been established that on the resulting Co-C film the reflection coefficient in the frequency range of 8.2–12.4 GHz varies in the range of 900 → 718 mU, with reflection losses of −0.86 → −2.57 dB, and a standing wave coefficient of 19 → 6.8. An analysis of the obtained data indicates the presence of losses of electromagnetic energy in the studied frequency range.
3D visualization , Co-C coating , magnetron sputtering , mechanical properties , microstructure , microwave-absorbing coatings
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National Laboratory of Collective Use, Sarsen Amanzholov East Kazakhstan University, 34 Tridtsatoy Gvardeiskoy Divizii Str., Ust-Kamenogorsk, 070002, Kazakhstan
Department of Analytical, Colloid Chemistry and Technology of Rare Elements, Al-Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty, 050040, Kazakhstan
Kaz Graphene LLP, 63 Zapadnyi Str., Ust-Kamenogorsk, 070011, Kazakhstan
National Laboratory of Collective Use
Department of Analytical
Kaz Graphene LLP
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