| Budget Amount *help |
¥46,020,000 (Direct Cost: ¥35,400,000、Indirect Cost: ¥10,620,000)
Fiscal Year 2009: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Fiscal Year 2008: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2007: ¥25,480,000 (Direct Cost: ¥19,600,000、Indirect Cost: ¥5,880,000)
|
|---|
| Research Abstract |
We have focused on half-Heusler type compounds MNiSn (M=Ti, Zr, Hf) as environmental-friendly thermoelectric materials which allow us the materials design without depending on toxic elements. Thermoelectric properties of MNiSn were evaluated as their intrinsic physical properties, and the phase separation of TiNiSn from ZrNiSn and HfNiSn, i.e. between the same half-Heusler ordered structure, was determined with related phase equilibria. New fabrication processes were proposed based on the reaction between Sn (liquid) and TiNi (solid) as well as based on the reduction of SnO_2 and oxidization of Ti. Thermoelectric properties were evaluated for TiNiSn/Ti-oxides composite alloys.
|
