Controlling the coarsening dynamics of ferrogranulate networks by means of the filling fraction—Less is more susceptible
- Author(s)
- Ali Lakkis, Matthias Biersack, Oksana Bilous, Sofia Kantorovich, Reinhard Richter
- Abstract
We are exploring in experiments the aggregation process in a shaken granular mixture of glass and magnetized steel beads, filled in a horizontal vessel. After the shaking amplitude is suddenly decreased, the magnetized beads form a transient network that coarsens in time into compact clusters. Here we investigate how an increased volume fraction ϕ of the granulate accelerates the coarsening, whereas a homogeneous magnetic field B⊥ oriented in vertical direction impedes the emergence and growth of the networks. We explore the coarsening dynamics in the (ϕ,B)-control parameter space, and observe that low filling fractions are more susceptible to an increase of B⊥ than high ones.
- Organisation(s)
- Research Platform MMM Mathematics-Magnetism-Materials, Computational and Soft Matter Physics
- External organisation(s)
- Universität Bayreuth
- Journal
- Journal of Magnetism and Magnetic Materials
- Volume
- 589
- No. of pages
- 4
- ISSN
- 0304-8853
- DOI
- https://doi.org/10.1016/j.jmmm.2023.171620
- Publication date
- 01-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103017 Magnetism, 103015 Condensed matter
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/controlling-the-coarsening-dynamics-of-ferrogranulate-networks-by-means-of-the-filling-fractionless-is-more-susceptible(3e629a12-34cb-43ee-a8f7-95b1dd80dc26).html