IMPROVED METHOD FOR POWDER-METALLURGICAL PRODUCTION OF THERMOELECTRIC COMPONENTS

• Main Authors: SCHULTZ, THORSTEN, MORTENSEN, PAW V, GELLNER, MAGDALENA, BUSSE, JENS, HOCH, SASCHA, STENNER, PATRIK, ENKESHAFI, ALI ASGHAR, GIESSELER, MAREIKE
• Format: Patent
• Language: English; French
• Published: 02.04.2015
• Subjects: ELECTRICITY

The invention relates to a method for producing a thermoelectric component or at least a semifinished product thereof, in which a multiplicity of thermo legs made of thermoelectrically active active material are introduced into a substantially planar substrate made of an electrically and thermally insulating substrate material in such a manner that the thermo legs extend substantially perpendicular to the substrate plane through the substrate, and in which the active material is provided in powder form, is pressed to form green compacts and is then sintered within the substrate to form thermo legs. The invention is based on the object of developing the method of the type mentioned in the introduction in such a way that the freedom to select the thermally and electrically insulating substrate material is increased. This object is achieved by virtue of the fact that the pulverulent active material is pressed to form green compacts in a mould arranged outside the substrate and the green compacts are pressed out of the mould into holes provided in the substrate and sintered therein to form thermo legs.