| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2010: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Research Abstract |
Based on triple-point MPB theory proposed by the present principal investigator, we have developed two new Pb-free piezoelectric systems, BST-BCT and BHT-BCT, which exhibit large piezoelectric constant (d33>500pC/N), a record-high value for Pb-free systems. We have identified the cause of such high properties by means of high-resolution electron microscopy and CBED. Our results may provide a guide to designing high-performance piezoelectric materials.
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