Thermoelectric material and process for manufacturing the same

摘要

A thermoelectric material is prepare by mixing and melting at least two members selected from bismuth, tellurium, selenium, antimony, and sulfur to obtain an alloy ingot; grinding the alloy ingot to obtain powder of the alloy ingot; and hot pressing the powder of the alloy ingot. The hot pressing is performed under the conditions of a temperature of 500° C. or higher and 600° C. or lower and a pressure of 20 MPa or higher and 45 MPa or lower.