Patent · US Active

Method for producing a thermoelectric object for a thermoelectric conversion device

US9634219B2 · kind B2 · utility

1Cited by

4References

24Claims

0Family size

Assignee

Vacuumschmelze GmbH & Co. KG · DE

Inventors

Joachim Gerster · Alzenau, DE
Alberto BRACCHI · Hanau, DE
Michael Muller · Harper Woods, US

Key dates

Filing date	Apr 16, 2014
Grant date	Apr 25, 2017
Priority date	—
Expiry date	Sep 27, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2999/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

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° C. to 1200° 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° C. to 1500° C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.