Influence of the particle size on the magnetorheological effect of magnetorheological elastomers
| Autor: | J. Winger, M. Schümann, A. Kupka, Stefan Odenbach |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Diffraction Materials science Modulus 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Elastomer Smart material 01 natural sciences Electronic Optical and Magnetic Materials Magnetic field 0103 physical sciences Magnetorheological fluid Magnetic nanoparticles Particle size Composite material 0210 nano-technology |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 481:176-182 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2019.03.027 |
| Popis: | Magnetorheological elastomers are composite materials made of micron sized magnetic particles embedded in an elastomer matrix. By applying a magnetic field, the Young’s modulus of those materials can be controlled, which leads to the so-called magnetorheological effect and defines them as a smart material. In most papers dealing with magnetorheological elastomers, the particles are only specified by brand name and mean size, without mentions of the size distribution of the particles. Nevertheless, it is already known, that the particle size can have a significant impact on the magnetorheological effect. In this paper, magnetorheological effects of magnetorheological elastomers with iron particles of four different size fractions are compared. Size distributions have been analyzed using laser diffraction measurements and X-ray microtomography measurements. The results show a clear dependence of the magnetorheological effect on the particle size fraction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect