Eur. Phys. J. E (2006) 21: 387-389
https://doi.org/10.1140/epje/i2006-10071-7

Comment

Comment on “An enhanced polarization mechanism for the metal cations modified amorphous TiO₂ based electrorheological materials” by Qing Wu, Bin Yuan Zhao, Chen Fang and Ke Ao Hu

Department of Polymer Science and Engineering, Inha University, 402-751, Incheon, Korea

^* e-mail: hjchoi@inha.ac.kr

Received: 12 July 2006
Accepted: 2 January 2007
Published online: 24 January 2007

Abstract

Comments on a recent article on an enhanced polarization mechanism for the metal cations modified amorphous TiO₂ based electrorheological materials are presented, based upon an examination of the yield stress, which is a function of electric-field strength, of the materials. Using the deduced critical electric-field strengths, we find that the universal yield stress equation proposed collapses the data given by Qing Wu, Bin Yuan Zhao, Chen Fang, Ke Ao Hu, Eur. Phys. J. E 17, 63 (2005), onto a single curve.