| Project/Area Number |
23760633
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Inorganic materials/Physical properties
|
|---|
| Research Institution | Tokyo Institute of Technology |
|---|
Principal Investigator |
HOSHINA Takuya 東京工業大学, 大学院・理工学研究科, 助教 (80509399)
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Keywords | 強誘電体 / サイズ効果 / チタン酸バリウム / セラミックス / 誘電特性 / エアロゾルデポジション法 / 広帯域誘電特性 |
|---|
| 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.
|
