| Project/Area Number |
19360299
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Shimane University |
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Principal Investigator |
AKISHIGE Yukikuni (2008-2009) Shimane University, 教育学部, 教授 (30150981)
秋重 幸邦 (2007) Shimane University, 教育学部, 教授 (50159331)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMOTO Ichiro 島根大学, 教育学部, 准教授 (30335541)
SHIGEMATSU Hirotake 島根大学, 教育学部, 准教授 (40281068)
XU Jun 島根大学, プロジェクト研究推進機構, 研究員 (30448203)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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| Keywords | 誘電体物性 / セラミックス / 単結晶育成 / ナノ材料 / 配向制御 / 鉛フリー / 強誘電体 / 圧電体 / チタン酸バリウム / 単結晶 / 誘電率 / リラクサー |
|---|
| Research Abstract |
On novel barium titanate (BaTi_2O_5), which is difficult to synthesize because it decomposes at high temperatures, we tried to develop process technology for application. By using sol-gel powders as a starting material and a Spark Plasma Sintering technique, dense and orientated ceramics were synthesized. Furthermore, by using MnO_2 as sintering-additives, dense ceramics were successfully synthesized without using any special sintering techniques. In KF-doped BaTi_2O_5, the Curie-temperature T_C steeply decreases with increasing content of KF, and a relaxor state appears. Single crystals with 3-5 mm in length were obtained.
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