| Budget Amount *help |
¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2015: ¥27,040,000 (Direct Cost: ¥20,800,000、Indirect Cost: ¥6,240,000)
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| Outline of Final Research Achievements |
Effects of cation dopants, anion (F- and N3-) dopants, oxygen vacancy and epitaxial strain to the oxygen diffusion in cubic ZrO2 were systematically investigated by means of first principles MD calculations. As a result, it was found that the oxygen diffusion coefficient was considerably enhanced by introducing oxygen vacancy, anion and lattice strain simultaneously. Similar calculations were also conducted for La-O-F. MD simulations revealed that F- can migrate faster than O2-. Particularly, in tetragonal La-O-F, F- was found to diffuse through an interstitialcy mechanism due to the layered crystal structure.
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