The influence of dielectric characteristics of suspensions of nanosize barium, barium-strontium, and barium-calcium acetate titanyls in polydimethyl siloxane on the electrorheological effect

被引：2
|
作者：
Agafonov, A. V. [1 ,2 ]
Ivanov, K. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Solut Chem, Moscow 117901, Russia
[2] Ivanovo State Chem Technol Univ, Ivanovo, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2012年 / 48卷 / 01期
关键词：
EARTH-DOPED TIO2; ELECTRIC-FIELD; FLUIDS;
D O I：
10.1134/S2070205112010030
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The electrorheological effect is studied in electrorheological fluids (ERFs) based on PMS-20 silicone oil with fillers of nanopowders of BaTiO(CH(3)COO)(4), Ba(0.9)Sr(0.1)TiO(CH(3)COO)(4), and Ba(0.9)Ca(0.1)TiO(CH(3)COO)(4) salts obtained using the sol gel technique. The shearing force of ERFs containing these salts as dependent on the strength of dc and ac electric fields is measured. Significant changes in the viscoplastic properties of suspensions under the effect of electric fields are different and depend on the filler type, strength, and frequency of the field applied. Dielectric spectra, the effect of electric field on dielectric permeability, the tangent of losses, and the voltammetric characteristics of suspensions are studied. A correlation is shown between the dielectric and physicomechanical characteristics of ERFs under external electric fields.
引用
收藏
页码：75 / 79
页数：5
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