“…Similar to conventional composite materials, the HEA composites can be synthesized by reinforcing the HEA matrix with suitable ceramic reinforcements. In the last few years, several ceramic reinforcements, SiC, Al 2 O 3 , WC, TiC, TiN, TiB 2 , NbC [33][34][35] have been developed showing better hardness, wear, chemical stability, and bonding with HEA matrix coatings. Considerable progress has been done in these composite HEA coatings fabricated by laser cladding, plasma-arc cladding, magnetron sputtering, etc.…”