MANUFACTURING METHOD OF THERMOELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a thermoelement having excellent thermoelectric performance and mechanical strength by effectively using a thermoelectric material powder whose particle size is 38μm or less. SOLUTION: Materials of prescribed composition are mixed and heated to be melted, and then coagulated to produce a solid solution ingot which is pulverized to produce a solid solution powder whose particle size is 38μm or less. The solid solution powder is sintered under pressure, and then hot plastic deformed so that the crystal grain is orientated in a crystal orientation excellent in performance index.