Abstract
One area of constant interest in many fields of industry is development of functional multilayer coatings that possess excellent performance characteristics. That is why in our brief review the results of studies of structure and properties of multilayer structures based on binary nitrides of transition or refractory metals obtained by various physical-vapor deposition (PVD) techniques are presented. The influence of substrate temperature, substrate bias voltage, bilayer thickness and interface boundaries on the structure of coatings and their properties, such as hardness, plasticity, wear and corrosion resistance, are discussed in detail. This review may be useful for students and growing community of researchers interested in the synthesis-structure-properties relationship in multilayer coatings based on metal nitrides.
Highlights
Over the last few decades, an intensive development of the modern technologies has stimulated the need to improve protective properties of materials that are used in the manufacture of cutting tools, turbine blades, reactor walls, biomedical implants and so forth
In order to highlight characteristics of nitrides, based on transition and refractory metals obtained by physical-vapor deposition (PVD) techniques, we consider some examples of modern multilayer nanoscale protective coatings
Summarizing the first results of studies of multilayer coatings, the researchers concluded that the careful choice of composition, the strong chemical bonding and nano- and micrometres thickness of individual layers are the key factors affecting the properties of multilayer coatings
Summary
Over the last few decades, an intensive development of the modern technologies has stimulated the need to improve protective properties of materials that are used in the manufacture of cutting tools, turbine blades, reactor walls, biomedical implants and so forth. Service life, resistance to wear and oxidation under high temperatures are among the list of the most essential properties that such materials must possess. From this point of view, the most profitable way to satisfy all the requirements is the creation of a thin coating with the desired characteristics on the surface of a product material that protects the latter from the destruction when operating under extreme conditions. Three combinations chemical bonds between atoms depending the metal reactsthat withreacts nitrogen [21,22]. The covalent bond, occurs between the d‐state metal atom and nitrogen in the p‐state with a certain interaction of “metal‐.
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