Abstract
FeSi_2 thermoelectric elements are expected for high temperature applications because of its low cost, nontoxic and superior oxidation resistance. The thermoelectric conversion module was manufactured using a FeSi_2 thermoelectric conversion element produced by spark plasma sintering. In addition, the thermoelectric conversion characteristic and internal resistance was examined by using the thermoelectric conversion module. The thermoelectric conversion characteristic of p-n module joined with a silver solder was voltage of 70mV and internal resistance of 320 Ω at temperature difference of 250K. Moreover, p-Ag-n module was produced by spark plasma sinter-joining method. Thermoelectric conversion characteristic of sinter-joined p-Ag-n module was voltage of 81mV and internal resistance of 6.5 Ω at temperature difference of 250K. It was clarified that the sinter-joined p-Ag-n module indicated low internal resistance than the p-n module joined with a silver solder.
