| Project/Area Number |
24656405
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Shinshu University |
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Principal Investigator |
TARUTA Seiichi 信州大学, 学術研究院工学系, 教授 (00217209)
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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 |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | ナノ構造 / 透明材料 / 結晶化ガラス / 金属ナノ粒子 / マイカ / 還元 / 還元剤 / 電気伝導 |
|---|
| Outline of Final Research Achievements |
In order to fabricate the transparent mica glass-ceramics in which a great volume of metallic silver or cupper is separated, the crystallization of prepared parent glasses to which Ag2O or Cu2O was added and the microstructures of the obtained glass-ceramics were investigated. By heating the parent glasses to which 1-40 mol% Ag2O was added, the transparent mica glass-ceramics in which metallic silver nano-particles were separated could be obtained. Metallic silver nano-particles were separated also in the layers of mica crystals. However, an amount of separated metallic silver was a little and so the electronic conductivities could not be measured. Then, CeF3 was added to the parent glasses as a reducing agent. Consequently, a great volume of metallic silver separated. However, the transparency of the glass-ceramics disappeared because metallic silver particles greatly grew up. On the other hand, by heating the parent glasses to which Cu2O was added, metallic cupper was not separated.
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