| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2008: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2007: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
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| Research Abstract |
In AlPdRe and AlPdMn quasicrystals, we improved the microstructure and substituted the constitution elements according to our new guiding principle of WBRHC (weakly bonded rigid heavy clusters). We succeeded that the dimensionless figure of merit, ZT, increases 2.6 times to 0,21 by the substitution of Fe for Re in the former and 1.4 times to the largest value of 0.26 for the quaqsicrystals by the substitution of Ga for Al in the latter. On the other hand, in Al_2Ru which has been considered to be a related material for the Al-based quasicrystals, we succeeded to improve ZT to be 0.5 by substituting heavier Ga for Al and decreasing the thermal conductivity.
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