Ceramic Processing of Oxynitride Perovskite Dielectrics
| Project/Area Number |
24245039
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Hokkaido University |
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Principal Investigator |
KIKKAWA Shinichi 北海道大学, 工学(系)研究科(研究院), 教授 (10127219)
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| Co-Investigator(Kenkyū-buntansha) |
MOTOHASHI Teruki 北海道大学, 大学院工学研究院, 准教授 (00323840)
MASUBUCHI Yuji 北海道大学, 大学院工学研究院, 助教 (80466440)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000)
Fiscal Year 2014: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2013: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2012: ¥32,110,000 (Direct Cost: ¥24,700,000、Indirect Cost: ¥7,410,000)
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| Keywords | 酸窒化物 / セラミックス / 誘電性 / 結晶構造解析 / ペロブスカイト / 焼結 / 雰囲気アニール / 無機材料化学 / 誘電体物性 / ペロプスカイト / 誘電体 / 結晶構造 |
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| Outline of Final Research Achievements |
Neutron diffraction revealed that both SrTaO2N and LaTiO2N oxynitride perovskites have cis-configuration in O4N2 octahedra around B site cation. This coordination leads to local polarity induced dielectric property in these oxynitrides. About 30% of nitrogen is released from them above about 950℃ and 800℃, respectively. Sintering aid such as SrCN2 is effectrive to prepare dielectric ceramics of these oxynitrides to compencating both Sr and N together.
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Report
(4 results)
Research Products
(29 results)
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[Presentation] Nanocrystals of Nitrides and Oxides2012
Author(s)
Shinichi KIKKAWA
Organizer
Nanocon-012, 2nd International Conference on Nanotechnology - Innovative Materials, Processes, Products and Applications
Place of Presentation
Bharati Vidyapeeth University (Pune, India)
Related Report
Invited
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