Structural Control of Themoelectric Oxide Cell Using Pulse Electric Current Sintering Processings.

抄録

Fabrication of oxide thermoelectric generator was carried out using the pulse electric current sintering (PECS) method at 900 °C for 3 min.Direct joint between Al doped ZnO and NaCo₂O₄ polycrystalline materials formed by single process from the stacked powders.The thermoelectric power of the prepared π-type ZnO-NaCo₂O₄ element ( 5 x 10 x 15 mm) was ca. 85mV at dT=500K and at 800 °C.Furthermore, preparation of three types joints of NaCo₂O₄/Al-ZnO, NaCo₂O₄/Au/Al-ZnO and NaCo₂O₄/Al₂O₃/Al-ZnO ceramics are succeed by one step PECS processing.