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KAKEN_15K05687seika.pdf
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Download
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:365.0 KB
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:Nov 12, 2018 |
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Total downloads since Nov 12, 2018 : 474
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| Title |
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イオン導電性高分子アクチュエータにおける機械的・電気化学的損傷機構の解明
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| Kana |
イオン ドウデンセイ コウブンシ アクチュエータ ニ オケル キカイテキ・デンキ カガクテキ ソンショウ キコウ ノ カイメイ
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Ion dōdensei kōbunshi akuchuēta ni okeru kikaiteki denki kagakuteki sonshō kikō no kaimei
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Mechanical and electrochemical damage mechanism of ionic polymer metal composite actuators
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大宮, 正毅
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オオミヤ, マサキ
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Omiya, Masaki
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慶應義塾大学・理工学部・教授
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Research team head
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科研費研究者番号 : 30302938
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2018
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科学研究費補助金研究成果報告書
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2017
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| Abstract |
イオン導電性高分子アクチュエータは, 水溶液中で電場を印可すると水和した陽イオンが陰極に移動し, 陰極側が膨潤, 陽極側が収縮することで屈曲する特徴を持つ。本研究では, イオン導電性高分子アクチュエータを長期間駆動させた際に問題となりうる機械的および電気的損傷メカニズムについて明らかにした。そして, 電極金属の欠陥から生じるき裂の発生・進展を抑制することが, 長期信頼性を確保するうえで重要であることを示した。
An ionic polymer metal composite (IPMC) actuator undergoes a large bending motion when a low electric field is applied across its thickness under a wet environment. This actuator is expected to be applied in a wide range of fields including microelectromechanical systems (MEMS) and artificial muscles. In this study, IPMC actuators with palladium electrodes were used. However, it was found that this actuator had very randomly deformation properties when AC voltage was applied. Therefore, in this study, the degradation mechanisms of IPMC actuators were revealed from mechanical and electrical points of view. The results suggested that it is important to suppress the surface crack initiation and propagation to ensure the long-term reliability of IPMC actuators.
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研究種目 : 基盤研究(C)(一般)
研究期間 : 2015～2017
課題番号 : 15K05687
研究分野 : 材料力学
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