elemento deslizante

elemento deslizante a presente invenção refere-se a um elemento deslizante, particularmente um anel (10) de pistão para motores de combustão interna compreendendo um revestimento (15) de carbono amorfo duro e um perfil de rpk = 0,15 ¿m e 0,7 = rz = 1,5 ¿m. A sliding element, for example a piston ring for an internal combustion engine, may include a sliding face, an adhesive layer disposed on the sliding face, and a coating disposed over the adhesive layer. The coating may be composed of an amorphous carbon material. The coating may have a ratio between sp3 bonds and sp2 bonds that indicates a predominance of sp2 bonds. The coating may have a roughness profile including a value of Rpk of ≤0.15 μm and a value of Rz of 0.7≤Rz≤1.5 μm.