Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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The Effect of Compressing ER Electrode on Electrorheological Properties of Anhydrous ER Fluids

ER 유체용 압축전극이 ER 유체의 전기유변학적 특성에 미치는 영향

  • Ahn, Byeng-Gil (Textile-Ceramic Hybrid Lab., New Functional Materials Research Department, Korea Institute of Ceramic Eng. & Tech.)
  • 안병길 (요업기술원 신기능재료연구부 섬유 세라믹팀)
  • Published : 2002.02.28
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Abstract

For increasing the yield stress of ER fluids, the compressing ER electrode was developed and the compressing electrorheological (ER) behavior of anhydrous ER fluids in silicone oil of phosphorous ester cellulose powder was investigated. Under constant electric field, not only the current density but also the yield stress of anhydrous ER fluids were studied as varying the compressing length of ER electrode distance. From the experimental results the compressing of ER electrode had a large influence to the ER properties of anhydrous ER fluids. The current density was proportional to the compressing length of ER electrode under constant electric field and volume fraction also tile compressing yield stress was proportional to the volume fraction of dispersed particles under constant electric field and compressing length. When the ER electrode was compressed with 150mm after charging the electric field, 4 kV, tile yield stress of phosphoric ester cellulose ER fluids increased to thirteen times comparing with the yield stress measured at normal electrode.

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References

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