| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In this study, lead-free piezoelectric ceramics such as (Bi1/2K1/2)TiO3 (BKT) and (Bi1/2Na1/2)TiO3 (BNT) were focused aiming to the environmental protection. Particularly for the practical applications, it is considered that we need to address the issue about co-firing multilayer structure of these ceramics with electrodes such as silver (Ag). Then we clarified the silver diffusion behavior into these ceramics and understood that low temperature sintering of these ceramics was important for avoid the silver diffusion issue. After that, we also found effective dopants for lowering the sintering temperature of these ceramics, which was good for fabricating the multi-layer structure with suppressing the silver diffusion.
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