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首页> 外文期刊>Protection of Metals and Physical Chemistry of Surfaces >The Influence of Dielectric Characteristics of Suspensions of Nanosize Barium, Barium-Strontium, and Barium-Calcium Acetate Titanyls in Polydimethyl Siloxane on the Electrorheological Effect
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The Influence of Dielectric Characteristics of Suspensions of Nanosize Barium, Barium-Strontium, and Barium-Calcium Acetate Titanyls in Polydimethyl Siloxane on the Electrorheological Effect

机译：聚二甲基硅氧烷中纳米钡，钡锶和乙酸钙钡钙悬浮液的介电特性对电流变效应的影响

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摘要

The electrorheological effect is studied in electrorheological fluids (ERFs) based on PMS-20 sil-icone oil with fillers of nanopowders of BaTiO(CH_3COO)_4, Ba_(0.9)Sr_(0.1)TiO(CH_3COO)4, and Ba_(0.9)Sr_(0.1)TiO(CH_3COO)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.
机译：研究了以PMS-20硅油为基料并掺有BaTiO（CH_3COO）_4，Ba_（0.9）Sr_（0.1）TiO（CH_3COO）4和Ba_（0.9）纳米粉填料的电流变流体（ERF）的电流变效应。使用溶胶凝胶技术获得的Sr_（0.1）TiO（CH_3COO）4盐。测量包含这些盐的ERF的剪切力，取决于直流和交流电场的强度。悬浮液在电场作用下的粘塑性特性的显着变化是不同的，并且取决于填料的类型，强度和施加电场的频率。研究了介电谱，电场对介电导率的影响，损耗角正切以及悬浮液的伏安特性。在外部电场下，ERF的介电和物理机械特性之间显示出相关性。

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