PISTON RING

摘要

Disclosed is a piston ring (1) having a substrate (10) to which a wear resistant coating (20) is applied that includes at least one first element with a melting point Tm ≤ 700°C. The wear resistant coating (20) contains at least one second element with a melting point Tm > 760°C. The wear resistant coating also includes droplets (30) which have a diameter (D) and which contain at least the first element wherein at least 90% of the droplets (30) have a value 1 µm ≤ D =≤ 10 µm. In the method for producing a wear resistant coating (20) using an arc evaporation technique the target material includes at least one first element with a melting point Tm ≤ 700°C and at least one second element with a melting point Tm > 760°C wherein the quantity of the second material contained in the target material is such that the melting point (Tm) of the target material ≥ 1000°C.