Patent ID: 9634219
Date: 2017-04-25
CPC Classifications: B22F,C22C,H01L

Claim:
1. A method for producing a thermoelectric object for a thermoelectric conversion device, comprising: providing a starting material which comprises elements in the ratio of a half-Heusler alloy described by the formula αβχ, wherein a is one or more of the elements of the group consisting of Ti, Zr and Hf, β is Co or Ni and χ is Sn or Sb or both, the composition being described by Zr melting the starting material, followed by casting an ingot, heat treating the ingot for 12 to 24 hours at a temperature of 1000° C. to 1200° C. in order to produce a homogenised ingot, crushing the homogenised ingot, grinding the crushed ingot, whereby a powder is produced, cold pressing the powder, whereby a green body is produced, sintering the green body 0.5 to 24 hours at a temperature of 1000° C. to 1500° C., and producing a thermoelectric object.