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JOURNALS // Nanosystems: Physics, Chemistry, Mathematics // Archive

Nanosystems: Physics, Chemistry, Mathematics, 2018 Volume 9, Issue 6, Pages 746–753 (Mi nano365)

This article is cited in 5 papers

CHEMISTRY AND MATERIAL SCIENCE

Influence of thermal treatment of nanometer-sized titanate and barium orthotitanate precursors on the electrorheological effect

K. V. Ivanova, A. V. Agafonova, A. Y. Baranchikovb, V. K. Ivanovb, S. A. Kozyukhinb, E. V. Fatyushinab, V. V. Kozikc

a G. A. Krestov Institute of Solution Chemistry, RAS, Ivanovo, Russia
b Kurnakov Institute of General and Inorganic Chemistry, RAS, Moscow, Russia
c National Research Tomsk State University, Tomsk, Russia

Abstract: The results for the sol-gel synthesis of acylate gels are reported in the titanium tetra-n-butoxide–barium hydroxide–acetic acid system at a molar ratio of Ba:Ti components of 1:1 and 2:1. The thermal decomposition of these gels over temperatures ranging from 85–1200$^\circ$C was investigated using thermal analysis methods, XRD, FTIR spectroscopy, electron microscopy, and dielectrometry at frequencies from 25–106 Hz. The electrorheological effect in suspensions of powders synthesized at different temperatures with a stoichiometric Ba:Ti ratio = 1:1 and 2:1, in polydimethylsiloxane was studied. The influence of thermal gel treatment was analyzed on their dielectric properties as fillers of electrorheological fluids and on the magnitude of the electrorheological effect.

Keywords: sol-gel synthesis, barium titanate, electrorheological fluids, dielectric liquids, nanometer-sized, thermal treatment.

PACS: 61.46.+w, 77.22.-d, 82.45.Vp, 82.80.-d

Received: 29.06.2018
Revised: 11.10.2018

Language: English

DOI: 10.17586/2220-8054-2018-9-6-746-753



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