Vacuumschmelze Gmbh & Company Kg

Alberto Bracchi

Joachim Gerster

Michael Müller

Michael Mueller

Michael Muller

A method for producing a thermoelectric object for a thermoelectric conversion device is provided. A starting material which has elements in the ratio of a half-Heusler alloy is melted and then cooled to form at least one ingot. The ingot is homogenized at a temperature of 1000&#xb0; C. to 1400&#xb0; C. for a period of time t, wherein 0.5 h&#x2264;t&#x3c;12 h or 24 h&#x3c;t&#x3c;100 h. The homogenized ingot is crushed and ground into a powder. The powder is cold-pressed and sintered at a maximum pressure of 1 MPa for 0.5 to 24 h at a temperature of 1000&#xb0; C. to 1500&#xb0; C.

Method for producing a thermoelectric object for a thermoelectric conversion device

A method for producing a thermoelectric object for a thermoelectric conversion device is provided. A starting material which contains elements in the ratio of a half-Heusler alloy is melted and then cast form an ingot. The ingot is heat-treated for 12 to 24 hours at a temperature of 1000&#xb0; C. to 1200&#xb0; C. The homogenised ingot is crushed and ground to provide a powder. The powder is cold-pressed and sintered for 0.5 to 24 hours at a temperature of 1000&#xb0; C. to 1500&#xb0; C.

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Hanau, Germany

Alberto Bracchi