Microstructure, mechanical properties and tribological behaviors of TiAlN-Ag composite coatings by pulsed magnetron sputtering method

Nanostructured TiAlCuN and TiAlCuCN coatings for spacecraft: effects of reactive magnetron deposition regimes and compositions

“…The hardness decreases along with lower compressive stress due to the different grain growth rates, resulting in a weakened texture. 20–23…”

“…17 To improve the mechanical characteristics of nitride and carbonitride coatings, composite materials with copper and silver additives are being developed, which further reduce the friction coefficient and increase the wear resistance of coating composites. 16,[19][20][21][22][23][24][25] The increase in wear resistance of nitride coatings with the addition of silver and copper is based on the insolubility of these metals in the metal nitride matrix. The nanoparticles of these so metals act as solid lubricants when they come into instant contact with the friction pair element.…”

“…20 At a relatively high level of metal impurity, the grain size is signicantly reduced, and at the same time, a sufficient surface area is provided for repeating nuclei with random orientation. [20][21][22][23] Moreover, the embryos survive competitive growth and grow in favorable directions. As a result, the nanocomposite coating's texture gradually weakens.…”

Fabrication of Highly Conductive Silver-Coated Aluminum Microspheres Based on Poly(catechol/polyamine) Surface Modification

“…Silver-coated aluminum microspheres have attracted keen interest as a key promising electromagnetic shielding material due to the high conductivity of silver, low cost of aluminum, high ductility, and low density [8,9]. Various strategies have been developed to metalize the surface of the microsphere, such as the magnetron sputtering method [10], chemical vapor deposition [11], electrochemical deposition [12], and electroless plating [13]. Among these, electroless plating is commonly employed in industrial applications due to its low cost, use of simple equipment, unrestricted substrates, and uniform coating.…”

Multilayer Mo2n-Ag/Sinx Films for Demanding Applications: Morphology, Structure and Temperature-Cycling Tribological Properties

“…Therefore, during recent twenty years, a wide variety of solid lubricating films were produced and design by combining the intrinsic properties of some binary and ternary films which are very hard and resistant to oxidation, with specific elements which diffused up to the surface and formed a low friction tribolayer. Addition of soft metals such as Ag [16][17][18][19][20] and Cu [21][22][23][24][25], was observed to be one of the more efficient solutions to obtain self-lubrication properties at a wide temperature range. Nevertheless, the strong out-diffusion of the lubricious element and its quick depletion from the entire volume of the film only allows low friction behavior for short periods of time, leading after few minutes to the failure of the film [26][27][28][29][30].…”