2012 Fiscal Year Final Research Report
Size Effect of Nano-grained Ferroelectric Ceramics Fabricated byAerosol Deposition Method
| Project/Area Number |
23760633
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
HOSHINA Takuya 東京工業大学, 大学院・理工学研究科, 助教 (80509399)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 強誘電体 / サイズ効果 / チタン酸バリウム / セラミックス |
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| Research Abstract |
We demonstrated the grain size effect on the dielectric properties of BaTiO3 based ceramics fabricated by a two-step sintering method and aerosol deposition method. In the case of pure BaTiO3 ceramics, the grain size effect, where the permittivity showed a maximum at around 1 μm, was interpreted as the superposition effect of domain-wall contributions and grain boundary effect. Moreover, the size effects of (Ba,Ca)TiO3 and Ba(Zr,Ti)O3 ceramics, which were expected to be next-generation dielectric materials, were also investigated.
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Research Products
(9 results)
