Magnetodielectric effects in hybrid magnetorheological suspensions

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 22; pp. 53 - 62
• Main Authors: Bica, I., Anitas, E.M., Chirigiu, L., Bunoiu, M., Juganaru, I., Tatu, R.F.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.02.2015; 한국공업화학회
• Subjects: Cole–Cole plots; Dielectric loss factor; Hybrid magnetorheological suspension; Magnetic field; Plane capacitor; Relative dielectric permittivity; 화학공학; Cole–Cole plots; Dielectric loss factor; Hybrid magnetorheological suspension; Plane capacitor; Magnetic field; Relative dielectric permittivity
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2014.06.024

The magnetodielectric material obtained is a hybrid magnetorheological suspension (MRS-hybrid) which contains polyurethane sponge foam, magnetorheological suspensions (MRS) and polymerized silicone rubber. We create a plane capacitor based on MRS-hybrid. Using a programmable bridge we measure the capacitance C and the dissipation factor D of the capacitor as a function of intensity H of a constant magnetic field, and as a function of frequency f of an electric field. We determine the components ϵ′ (relative dielectric permittivity) and ϵ′′ (dielectric loss factor) of the complex dielectric permittivity ϵ* of MRS-hybrid. We present and discuss the obtained results.