Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
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Outline of Final Research Achievements |
Partially reduced TiO2-x (x~0.1: Magnelli phase) consists of a regular stacking of TiO2 and Ti2O3 layers as a natural superlattice structure. To reduce the thermal conductivity without changing electrical properties, quadlivalient impurities of Zr or Sn are added to the crystal. Zr makes solid solution as expected but Sn does not make solid solution. Thermal conductivity of Magnelli phase does not significantly change upon alloying with Zr. On the other hand, the alloying lowers electric conductivity. As a result, thermoelectric properties are not improved by the alloying with Zr.
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