| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
To develop high-capacitance capacitors, we have focused on boundary layer (BL) ceramic capacitors which commonly exhibit a high dielectric constant. We have proposed the novel low-temperature processes, and actually the titanium metal/barium titanate (Ti/BT) composites consisting of Ti metal grains and BT boundary nanolayers were successfully prepared. The resultant Ti/BT composite capacitors achieved the high effective dielectric constant over 10000 and low tangent loss less than 5% in a wide frequency range by constructing homogeneous fine microstructures. We also fabricated the BL-type conductive perovskite oxide/insulating perovskite oxide composite ceramic capacitors with an epitaxial interface by the hydrothermal method to enhance dielectric breakdown strength.
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