Magnetic properties of hybrid elastomers with magnetically hard fillers: rotation of particles. (21st February 2017)

• Record Type: Journal Article
• Authors: Stepanov, G V; Borin, D Yu; Bakhtiiarov, A V; Storozhenko, P A
• Is Part Of: Smart materials and structures. Volume 26:Number 3(2017:Mar.)
• Publication Date: 2017-02-21
• Subjects: magnetorheological elastomers -- hybrid magnetic elastomers -- magnetoactive elastomers -- FeNdB fillers; Smart materials -- Periodicals; Strucural design -- Periodicals; 620.11
• DOI: 10.1088/1361-665X/aa5d3c
• Languages: English
• ISSNs: 0964-1726

Abstract

Abstract: Hybrid magnetic elastomers belonging to the family of magnetorheological elastomers contain magnetically hard components and are of the utmost interest for the development of semiactive and active damping devices as well as actuators and sensors. The processes of magnetizing of such elastomers are accompanied by structural rearrangements inside the material. When magnetized, the elastomer gains its own magnetic moment resulting in changes of its magneto-mechanical properties, which remain permanent, even in the absence of external magnetic fields. Influenced by the magnetic field, magnetized particles move inside the matrix forming chain-like structures. In addition, the magnetically hard particles can rotate to align their magnetic moments with the new direction of the external field. Such an elastomer cannot be demagnetized by the application of a reverse field.