Microstructure and mechanical properties of Cr–Si–N coatings prepared by pulsed reactive dual magnetron sputtering

Solid particle erosion mechanisms of protective coatings for aerospace applications

“…Benkahoul et al [11] in which they demonstrated the increased hardness of CrSiN coatings when compared to the basic CrN coating. They showed that the maximum hardness (24 GPa) was attributed to solid solution hardening at a Si content of 2.3 at.%.…”

“…The base pressure of the reactor, described in detail in [11], was below 1 x 10 -6 Torr. Three different substrates were used: single crystal silicon (c-Si),…”

“…The base pressure of the reactor, described in detail in [11] was below 1 x 10 -6 Torr. Prior to deposition, the single crystal silicon substrates were cleaned in acetone and isopropanol in an ultrasonic bath while the QCMs were inserted directly into the deposition chamber.…”

“…It has been found that the addition of other elements such as silicon (Si) in MeN systems can have profound effects on their mechanical, chemical and tribological properties [11,14,[221][222][223][224][225]. These changes have been explained by two main mechanisms: the formation of a nanocomposite microstructure formed by the segregation of MeN grains separated by a monolayer thick SiN x matrix [14,221,223] and solid solution hardening [11,222] due to the substitution of Me atoms by Si in the MeN lattice.…”

“…These changes have been explained by two main mechanisms: the formation of a nanocomposite microstructure formed by the segregation of MeN grains separated by a monolayer thick SiN x matrix [14,221,223] and solid solution hardening [11,222] due to the substitution of Me atoms by Si in the MeN lattice.…”