It has been possible to sinter the material system, consisting of 60 vol.-% ZrO2 and 40 vol.-% WC, without pressure in a nitrogen atmosphere. This composite material has excellent properties in terms of tribological and chemical resistance. Among others, the good thermal conductivity and low thermal expansion coefficient should be mentioned, which achieve excellent thermal shock resistance in the material. Also worth mentioning is the high hardness, which ensures low wear during material use. The development of the material arose from various research and development projects, from different fields of application, which benefited from the above properties. Starting with the development of surgical electrodes in high-frequency surgery, through the use in the field of grinding balls, which achieve extremely efficient grinding due to the high density and correspondingly high weight of the material, to tools used in friction stir welding of steel.