Journal of Materials Science

, Volume 43, Issue 17, pp 5702–5704 | Cite as

Comment on: Preparation, microstructure, and electrorheological property of nano-sized TiO2 particle materials doped with metal oxides

  • Cheng Hai Hong
  • Hyoung Jin ChoiEmail author
  • Jae Ho Kim


We comment on the shear stresses of recently reported Na-doped, Zr-doped, Al-doped, and Ce-doped TiO2-based electrorheological (ER) suspensions under applied electric strengths. Using deduced critical electric-field strength and additional scaled parameter, we found that the shear stresses could be analyzed using the universal yield stress equation, collapsing the data of Na-doped, Zr-doped, Al-doped, and Ce-doped TiO2 ER fluids onto a single curve


Conductivity Model Polarization Model Dimethyl Silicone Universal Scaling Function Electric Field Range 



This work was supported by research grants from KIER, Korea (2007).


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Cheng Hai Hong
    • 1
  • Hyoung Jin Choi
    • 1
    Email author
  • Jae Ho Kim
    • 2
  1. 1.Department of Polymer Science and EngineeringInha UniversityIncheonSouth Korea
  2. 2.Department of Energy ConversionKorea Institute of Energy ResearchDaejonSouth Korea

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