J Mater Sci Technol ›› 2002, Vol. 18 ›› Issue (05): 430-432.

• Research Articles • Previous Articles     Next Articles

Electrorheological Fluids Based on Titania Particles Coated with Silica and Their Application in Smart Windows

Mengqiang WU, Ai CHEN, Zhuoya ZHU, Yongquan HAN   

  1. School of Microelectronics and Solid State Electronics, University of Electronic Science and Technology, Chengdu 610054, China
  • Received:2001-03-23 Revised:2001-07-02 Online:2002-09-28 Published:2009-10-10
  • Contact: Mengqiang WU

Abstract: The electrorheological (ER) fluids are colloidal suspension of highly polarizable particles in a non-conducting solvent. Chains of submicron-sized particles formed along an applied DC electric field by the so-called electrorheological effect. According to the obvious change of transmittance of the ER fluids in a DC electric field when the polarized particles arranged along the field, the model of smart window was proposed by sandwiching the ER fluids based on titania particles coated with silica between a pair of In-Sn oxide (ITO) coated glasses. The solar transmittance change as much as 48.0% was obtained with the wavelength of 500 nm at the maximumm on applying and removing th electric field of 500 V/mm.

Key words: Electrorheological fluid, Titania, Silica