Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
|
Outline of Final Research Achievements |
In this study, we report growth and electrical properties of Ca2Al2SiO7 (CAS) and its modified single crystals with melilite-type structure. These crystals showed high chemical stability, stable piezoelectric property, and high resistivity even at high temperature. Moreover, these crystals were easily grown by a conventional bulk growth technology. This study also demonstrated superior combustion sensor performance using these crystals even at 700 degree C. These results suggest that CAS and its modified crystals are the most promising candidate materials for piezoelectric sensor application at high temperatures.
|