Role of Electric Conduction on Forces of Cohesion between Particles in ER Fluids of Disperse System
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- Hanaoka Ryoichi
- Kanazawa Institute of Technology
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- Takata Shinzo
- Kanazawa Institute of Technology
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- Murakumo Masatoshi
- Kanazawa Institute of Technology
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- Sakurai Koji
- Fujikura Kasei Co., Ltd.
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- Anzai Hidenobu
- Fujikura Kasei Co., Ltd.
Bibliographic Information
- Other Title
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- 分散系ER流体の粒子凝集力に関する電気伝導の役割
- ブンサンケイ ER リュウタイ ノ リュウシ ギョウシュウリョク ニ カンスル デンキ デンドウ ノ ヤクワリ
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Abstract
The current-voltage characteristics and the electrical responses of the electrorheological (ER) fluids were measured under DC electric field conditions. The test fluids consisted of microsphere particles with various moisture levels (in a range of 1500 to 7000ppm wt.%) dispersed in a dimethylsilicone oil (at 30wt.%). In these fluids, the relationship between the current density and electric field strength could roughly be fitted with sinh functions suggesting ionic conduction. The forces of cohesion between individual particles in the ER fluids were considered using the mathematical model in which the current passes through the surface layer of the particles. The current-force relationship predicted by the theory was compared to experimental results for the test fluids. It is shown that the particle conductivity in ER fluids plays a dominant role in the mechanisms of the ER effect.
Journal
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- IEEJ Transactions on Fundamentals and Materials
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IEEJ Transactions on Fundamentals and Materials 121 (2), 136-142, 2001
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390001204599362944
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- NII Article ID
- 10005322257
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- NII Book ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL BIB ID
- 5657114
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed