Omer Yunus Gumus and Halil Ibrahim Unal, Effect of surfactant on the dielectric and electrorheological properties of zinc borate/silicone oil dispersions, Int. J. Miner. Metall. Mater., 26(2019), No. 12, pp. 1523-1530. https://doi.org/10.1007/s12613-019-1853-2
Cite this article as:
Omer Yunus Gumus and Halil Ibrahim Unal, Effect of surfactant on the dielectric and electrorheological properties of zinc borate/silicone oil dispersions, Int. J. Miner. Metall. Mater., 26(2019), No. 12, pp. 1523-1530. https://doi.org/10.1007/s12613-019-1853-2
Research Article

Effect of surfactant on the dielectric and electrorheological properties of zinc borate/silicone oil dispersions

+ Author Affiliations
  • Corresponding author:

    Omer Yunus Gumus    E-mail: omer.gumus@btu.edu.tr

  • Received: 16 January 2019Revised: 16 April 2019Accepted: 18 April 2019
  • Zinc borate (ZB) particles dispersed in silicone oil (SO) at concentrations of φ=5vol%-20vol% were subjected to dielectric analysis to elucidate their polarization strength, time, and mechanism. Results revealed that all virgin dispersions lacked polarization. Triton X-100, a non-ionic surfactant, was added to ZB/SO dispersions to enhance the polarizability of ZB particles. The addition of 1vol% Triton X-100 enhanced the polarizability of ZB/SO dispersions, and the 15vol%ZB/SO system provided the highest dielectric difference Δε' (the difference in ε' values at zero and infinite frequency, Δε'=ε0-εµ) of 3.64. The electrorheological (ER) activities of the ZB/SO/Triton-X dispersion system were determined through the ER response test, and viscoelastic behaviors were investigated via oscillation tests. A recoverable deformation of 36% under an applied electrical field strength of 1.5 kV/mm was detected through creep and creep recovery tests.
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