Patent · US Active

Method for producing a thermoelectric object for a thermoelectric conversion device

US10818831B2 · kind B2 · utility

0Cited by

1References

26Claims

0Family size

Assignee

Vacuumschmelze GmbH & Co. KG · DE

Inventors

Michael Mueller · Dresden, DE
Alberto BRACCHI · Hanau, DE
Joachim Gerster · Alzenau, DE

Key dates

Filing date	Oct 13, 2015
Grant date	Oct 27, 2020
Priority date	—
Expiry date	Jul 23, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C1/0483
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

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° C. to 1400° C. for a period of time t, wherein 0.5 h≤t<12 h or 24 h<t<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° C. to 1500° C.

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