THERMOELECTRIC CONVERSION MODULE AND HEAT EXCHANGER EMPLOYING THE SAME, THERMOELECTRIC TEMPERATURE CONTROL DEVICE AND THERMOELECTRIC GENERATOR

摘要

A thermoelectric conversion module (10) comprises a first electrode member (13) arranged on the low temperature side, a second electrode member (14) arranged on the high temperature side, and p-type and n-type thermoelectric elements (11, 12) arranged between and connected electrically with both the first and second electrode members (13, 14). The thermoelectric elements (11, 12) are composed of a thermoelectric material (half whistler material) containing an intermetallic compound having an MgAgAs crystal structure as a main phase, and has a fracture toughness K1c of not less than 1.3 MPa m1/2 but less than 10 MPa m1/2.