THERMOELECTRIC MATERIAL SINTERED BODY USING GAS ATOMIZED POWDER, AND METHOD FOR MANUFACTURING THE THERMOELECTRIC MATERIAL SINTERED BODY

摘要

PROBLEM TO BE SOLVED: To provide a thermoelectric material that has an improved thermoelectric conversion performance and resistance to thermal shock in a cobalt antimonide thermoelectric material having skutterudite structure. SOLUTION: Gas atomized powder having a different minimum particle diameter is laminated and sintered by a cobalt antimonide thermoelectric material sintered body having skutterudite structure, thus forming a section where atomized powder having a larger minimum particle diameter than other sections is sintered to one portion of the sintered body.