| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Pulse-current sintering under cyclic uniaxial pressure was applied to Bi0.4Sb1.6Te3, which is a typical p-type thermoelectric material. The crystal alignment and grain size were remarkably changed by applying the cyclic uniaxial pressure and textures were controllable by the sintering temperature, holding time and uniaxial pressure patterns. As a result of preparation of sintered materials having the various microstructures, the texture dependence of thermoelectric properties could be shown. Furthermore, it was also confirmed that the texture and thermoelectric properties of n-type Bi2Te2.7Se0.3 could be controlled by this method as well as the p-type Bi0.4Sb1.6Te3.
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