K. V. Ivanov, A. V. Agafonov, A. Y. Baranchikov, V. K. Ivanov, S. A. Kozyukhin, E. V. Fatyushina, V. V. Kozik, “Influence of thermal treatment of nanometer-sized titanate and barium orthotitanate precursors on the electrorheological effect”, Nanosystems: Physics, Chemistry, Mathematics, 2018, Volume 9, Issue 6,Pages <nobr>746

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. Ivanov^a, A. V. Agafonov^a, A. Y. Baranchikov^b, V. K. Ivanov^b, S. A. Kozyukhin^b, E. V. Fatyushina^b, V. V. Kozik^c

^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