Abstract
The paper discusses the results of the research into the formation of ion-plasma multiphase coatings. The types of the formed structures are found to be not so diverse, as those formed, for example, in alloy crystallization. The structures observed are basically of globular type and, more rarely, of unclosed dissipative and cellular structures. It is shown that the properties of the coating formed in deposition are largely determined by its surface energy or surface tension. Since the magnitude of the surface tension (surface energy) in most cases is an additive quantity, each of the elements of the coating composition contributes to the total surface energy. In case of simultaneous sputtering of multiphase cathodes, high entropy coatings with an ordered cellular structure and improved mechanical properties are formed.
Highlights
The microstructure of single-phase films can be described qualitatively well using models proposed by Movchan and Demchishin, and Thornton [1, 2]
The structure is globular, and in the second one, the structure is unclosed dissipative. We suppose that this difference in the structure of the coatings is caused by the difference in the surface tension of the basis metals of these coatings
The surface tension for Zn-Al and Fe-Al coatings was determined by the technique described in
Summary
The microstructure of single-phase films can be described qualitatively well using models proposed by Movchan and Demchishin, and Thornton [1, 2]. The coating of a complex elemental composition is synthesized through layering or simultaneous deposition of the flows on a substrate in reactive gas atmosphere from sources: ion [4], magnetron [5], vacuum arc [6], and their combinations thereof. The results obtained are discussed in terms of the role of the surface tension in formation of the coatings.
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More From: IOP Conference Series: Materials Science and Engineering
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