| Project/Area Number |
16K14217
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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 |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
KOZAKO Masahiro 九州工業大学, 大学院工学研究院, 准教授 (80350429)
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| Co-Investigator(Kenkyū-buntansha) |
三宅 弘晃 東京都市大学, 工学部, 准教授 (60421864)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | ポリマーナノコンポジット / 絶縁材料 / ナノ粒子 / 沿面放電 / 二次電子放出係数 / 量子化学計算 / インパルス放電 / エポキシ樹脂 / ナノコンポジット / 機能性絶縁材料 / テーラーメイド / ナノフィラー / フラーレン / 電気機器工学 / 電子・電気材料 |
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| Outline of Final Research Achievements |
Epoxy/silica nanocomposites were prepared and its withstand voltages of impulse creeping discharge in insulating oil were evaluated. As a result, the withstand voltage increases by 10% with 1 wt% addition of nano-silica. On the other hand, it decreases by 10% with 10 wt% addition of nano-silica as compared with the specimen without nano-silica addition. An effect of this improvement might be related to an electronic carrier trap of nano-particles.
From results of the secondary electron emission measurement, it is found that the secondary electron emission coefficient is slightly suppressed in the nano-silica added specimen. From results of quantum chemistry calculations, it is found that nano-particles show a functionality as deep traps. These results may contribute to understand the improvement mechanism of the breakdown strength and the creeping discharge withstand voltage.
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