Evonik Degussa Gmbh

Evonik Operations Gmbh

Magdalena Kern

Jürgen Meyer

Juergen Meyer

Günther Michael

Patrik Stenner

Guenther Michael

Thorsten Schultz

Juri Tschernjaew

Markus Hartmann

Jan Berger

Mareike Giesseler

Sascha Hoch

Jens Busse

Wolfgang Deis

Rüdiger Mertsch

Ruediger Mertsch

Sabine Leick

Paw V Mortensen

Ali Asghar Enkeshafi

Georg Duerr

Zeljko Rajic

Georg DÜRR

Sacha Hoch

A method can produce a thermoelectric component or at least a semifinished version of the thermoelectric component. The method includes: a) providing a substantially planar substrate; b) providing a pulverulent thermoelectrically active material; c) pressing the active material to form green bodies; d) inserting green bodies into through-holes of the substrate; e) arranging the substrate with the green bodies inserted therein between two substantially planar electrodes; f) contacting face ends of the green bodies with the electrodes; g) exposing the green bodies to an electric current flowing between the electrodes; h) exposing the green bodies to a pressure force acting between the electrodes; i) sintering the green bodies to form thermolegs; and k) levelling the substrate and the thermolegs accommodated therein by bringing them closer to the electrodes while maintaining the parallelity thereof.

Rational method for the powder metallurgical production of thermoelectric components

A paint system contains an anti-fouling metal oxide and a fumed silica, wherein the fumed silica has a BET surface area of 150 to 400 m/g, a tamped density of 100 to 300 g/l and a thickening of less than 500 mPas.

Paint system containing anti-fouling metal oxide and fumed silica

The invention relates to a method for producing a thermoelectric component or at least one semi-finished product of same, in which a multiplicity of thermolegs made of a thermoelectrically active material are introduced into an essentially planar substrate made of an electrically and thermally insulating substrate material such that the thermolegs extend through the substrate essentially perpendicular to the substrate plane, and in which the active material is provided in pulverulent form, is pressed to give green bodies and is then sintered within the substrate to give thermolegs. It is based on the object of refining the method of the generic type mentioned in the introduction so as to increase the freedom of choice of the thermally and electrically insulating substrate material. The object is achieved in that the pulverulent active material is pressed, in a mould arranged outside the substrate, to give green bodies, the green bodies are pushed out of the mould and into holes provided in the substrate, where they are sintered to give thermolegs.

Method for producing thermoelectric components by powder metallurgy

Growing community of inventors

Alzenau, Germany

Magdalena Kern