| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoelectric conversion material which can be stably used at a high temperature of 500°C or higher and which has a low toxicity and to provide a thermoelectric conversion element. SOLUTION: The thermoelectric conversion material contains an oxide represented by the formula: (Ca<SB>1-x</SB>M1<SB>x</SB>)2(Co<SB>1-y</SB>Ga<SB>y</SB>)<SB>2</SB>O<SB>5</SB>(wherein M1 is La, Sr or Ba, 0≤x≤0.07 and 0.2≤y<0.5), or (Ca<SB>1-p</SB>M2<SB>p</SB>)<SB>2</SB>(Co<SB>1-q</SB>Fe<SB>q</SB>)<SB>2</SB>O<SB>5</SB>(wherein M2 is La, Sr or Ba, 0≤p<0.1, and 0.2≤q<1.0). COPYRIGHT: (C)2004,JPO
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