An endoprosthesis component is formed from a ceramic material and in which the ceramic material is partially coated with a titanium alloy. An uncoated surface portion of the endoprosthesis component is designed to interact as slide surface with another endoprosthesis component. A coated surface portion of the endoprosthesis component is designed to establish a connection to a bone. The part of the ceramic material forming an interface to the coating has a roughness Ra of between 2.5 &muM and 7 &muM, creating a firm connection between the coating and the ceramic material. The invention further relates to a method for producing such an endoprosthesis component. To achieve the desired roughness of the surface, the ceramic component is presintered at a temperature of between 880° C. and 980° C. and is then treated with a blasting material.
