| 摘要 |
The present invention provides a metal material represented by compositional formula Mn x M y Si m Al n wherein M is at least one element selected from the group consisting of Ti, V, Cr, Fe, Co, Ni, and Cu; and 2.0‰¤x‰¤3.5, 0‰¤y‰¤1.4, 2.5‰¤x+y‰¤3.5, 3.5‰¤m‰¤4.5, and 1.5‰¤n‰¤2.49, the metal material having a negative Seebeck coefficient and an electrical resistivity of 2 m©·cm or less at a temperature of 25°C or more, the metal material being in a crystalline form. The present invention provides a novel material useful as an n-type thermoelectric conversion material exhibiting favorable thermoelectric conversion performance in the intermediate temperature range and excellent durability. |
