| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2013: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Outline of Final Research Achievements |
Spectrophotometric techniques including Raman and infrared spectroscopies enabled to characterize the domain structure in lead-free niobate piezoelectric materials, and confirmed that a permittivity increased significantly in the vicinity of domain walls.
Based on the above fact, a manufacturing process was also improved successfully to synthesize the high-density ceramics having controlled microstructures, which could demonstrate excellent high-load resistances against elevated temperature and applied electrical field.
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