| Project/Area Number |
24655186
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Tohoku University |
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Principal Investigator |
ITO Akihiko 東北大学, 金属材料研究所, 助教 (20451635)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 透明セラミックス / 蛍石型結晶構造 / イオン伝導体 / パイロクロア / 放電プラズマ焼結 |
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| Research Abstract |
A novel synthesis route to obtain transparent multifunctional ceramics by using SPS has been proposed. Transparent lutetium niobate (Lu3NbO7) had a cubic defect-fluorite structure, where Lu and Nb cations randomly occupy the 4a site, and 1/8 of the 8c site for O anion is statistically defective. Such disordering of cations and O defects makes Lu3NbO7 is an interesting multifunctional material. Transparent Lu3NbO7 ceramics had a uniform microstructure and the transmittance at 550 nm reached at 68%. TEM observation suggests the formation of ordered structure in Lu3NbO7 ceramics.
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