Electric Field Induced Permittivity Increase of Carbon Particle Aggregates/Silicone Oil Suspension

IOP Conference Series: Materials Science and Engineering. Vol.503: Functional Materials and Nanotechnologies (FM&NT 2018) 2019
Kaspars Ozols, Sabīne Ščegoļeva, Māris Knite

Permittivity percolation threshold of carbon particle aggregates/silicone oil (CPA/SO) suspension was determined (fc = 2.6 wt%). A direct current electric field induced permittivity increase versus time for the suspension containing 0.2 wt% of the CPA was measured at different field strengths. It was found that the electric field at 200 V/cm increases the permittivity of the CPA/SO suspension (e' = 3.2 at 1 kHz) by three orders of magnitude in 30 min. At 800V/cm the same permittivity increase was reached in 1.5 min.

Keywords
permittivity increase, particle alignment, carbon black, silicone oil, suspension, electric field
DOI
10.1088/1757-899X/503/1/012012
Hyperlink
https://iopscience.iop.org/article/10.1088/1757-899X/503/1/012012/meta

Ozols, K., Ščegoļeva, S., Knite, M. Electric Field Induced Permittivity Increase of Carbon Particle Aggregates/Silicone Oil Suspension. In: IOP Conference Series: Materials Science and Engineering. Vol.503: Functional Materials and Nanotechnologies (FM&NT 2018), Latvia, Riga, 5-5 October, 2018. Bristol: IOP Publishing, 2019, Article number 012012. ISSN 1757-8981. e-ISSN 1757-899X. Available from: doi:10.1088/1757-899X/503/1/012012

Publication language
English (en)