THERMOELECTRIC CONVERSION MATERIAL AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a method for manufacturing a thermoelectric conversion material having a superior electric property and an adequately reduced thermal conductivity.SOLUTION: A thermoelectric conversion material has a composition expressed by the formula (1) below, and has an average...

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Hauptverfasser:	OKAWACHI YOSHINORI, KOGURE TOMOYA, HIRONO SHINSUKE, MURAI TATEYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CASTING CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a thermoelectric conversion material having a superior electric property and an adequately reduced thermal conductivity.SOLUTION: A thermoelectric conversion material has a composition expressed by the formula (1) below, and has an average crystal grain diameter of 0.05-1.0 μm: BiSbTe[where x, y and z are positive numbers satisfying that (x+y)/(x+y+z) is 0.402 to 0.430].SELECTED DRAWING: Figure 1 【課題】優れた電気特性及び十分に低減された熱伝導率を有する熱電変換材料の製造方法を提供する。【解決手段】式（１）：ＢｉｘＳｂｙＴｅｚ［式中、ｘ、ｙ及びｚは、（ｘ＋ｙ）／（ｘ＋ｙ＋ｚ）が０．４０２以上０．４３０以下であることを満たす正の数である］で表される組成を有し、平均結晶粒径が０．０５〜１．０μｍである熱電変換材料。【選択図】図１