| Budget Amount *help |
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
0-3 type composite materials consisting of piezoelectric/pyroelectric ceramic particles and a heat-resistant polymer matrix were synthesized. We also developed a new measurement system that can observe the difference of thermal expansion/contraction strain coming from near the interface between the different phases during local and abrupt temperature change under constant stress or strain. Regarding thermo-electric conversion, we finally succeeded in observing the instantaneous second-order pyroelectric coefficient via strain, separately from the first-order (thermoelectric direct conversion) coefficient. Based on these results, we have found a breakthrough in the development of thermal management materials by a tandem-like new principle based on pyroelectric first/second order coefficients.
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