THERMAL STRESS RELAXATION MATERIAL FOR THERMOELECTRIC CONVERSION MODULE, ITS MANUFACTURING METHOD AND THERMOELECTRIC TRANSDUCER

摘要

PROBLEM TO BE SOLVED: To provide thermal stress relaxation material wherein thermal conductivity is improved and thermoelectric efficiency can be improved, as compared with the conventional thermal stress relaxation material made of graphite, and to provide a manufacturing method of the material and a thermoelectric transducer. SOLUTION: The thermal stress relaxation material 6 is made of graphite and interposed in at least a part between the thermoelectric conversion module and a low temperature side member or a part between the module and a high temperature side member. A graphite body in which foil type graphite 8 is sliced in a direction almost parallel to the lamination direction, thereby forming oblong strip type graphite material 8a. The plurality of graphite materials 8a are arranged in a plane type in such a manner that sliced surfaces 8b are turned into sheet surfaces 6a, 6b of the relaxation material 6, and contact bonding is performed. COPYRIGHT: (C)2003,JPO