One aspect of the invention relates to a pump device, comprising i. an impeller； ii. a pump housing which at least partly surrounds an interior region, having an inlet and an outlet, wherein the impeller is located within the interior region of the pump housing； wherein the pump housing comprises at least one first subregion and at least one further subregion； wherein the first subregion comprises a ceramic, wherein the further subregion comprises a metal, wherein at least one part of the first subregion and at least one part of the further subregion are connected to one another. One aspect of the invention further relates to a housing which comprises the features described for the pump housing.One aspect of the invention also relates to a method for producing a pump housing.
