Academic Journal
Unknotting of quasi-two-dimensional ferrogranular networks by in-plane homogeneous magnetic fields
| العنوان: | Unknotting of quasi-two-dimensional ferrogranular networks by in-plane homogeneous magnetic fields |
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| المؤلفون: | Sánchez, P. A., Miller, J., Kantorovich, S. S., Richter, R. |
| المصدر: | J Magn Magn Mater ; Journal of Magnetism and Magnetic Materials |
| بيانات النشر: | Elsevier B.V. |
| سنة النشر: | 2020 |
| المجموعة: | Ural Federal University (URFU): ELAR / Уральский федеральный университет: электронный архив УрФУ |
| مصطلحات موضوعية: | FERROGRANULATE MIXTURE, FIELD INDUCED NETWORK UNKNOTTING, LANGEVIN DYNAMICS SIMULATION, SUSCEPTIBLE DIPOLAR HARD SPHERES, TRANSIENT NETWORK, VISCOELASTIC PHASE SEPARATION, IRON ALLOYS, MAGNETIC SEPARATION, MIXTURES, MOLECULAR DYNAMICS, VISCOELASTICITY, DIPOLAR HARD SPHERES, FIELD INDUCED, LANGEVIN DYNAMICS, PHASE SEPARATION |
| الوصف: | Our ongoing research addresses, by means of experiments and computer simulations, the aggregation process that takes place in a shaken granular mixture of glass and magnetized ferrous alloy beads when the shaking amplitude is suddenly decreased. After this quenching, the magnetized beads form a transient network that coarsens in time into compact clusters, following a viscoelastic phase separation. Here we focus on the quasi-two-dimensional case, analyzing in computer simulations the effects of a magnetic field parallel to the system plane. Our results evidence that the field drastically changes the structure of the forming network: chains and elongated clusters parallel to the field are favored whereas perpendicular connecting structures tend to be suppressed, leading to the unknotting of the networks which are observed at zero field. Importantly, we found that moderate field strengths lead to the formation of larger clusters at intermediate time intervals than in the case of weak and strong fields. Moreover, the latter tend to limit the overall growth of the clusters at longer time scales. These results may be relevant in different systems governed by similar magnetically driven aggregation processes as, for example, in the formation of iron-rich planetesimals in protoplanetary discs or for magnetic separation systems. © 2019 Elsevier B.V. ; Research supported by the Russian Science Foundation Grant No. 19-12-00209 . Simulations were performed at the Vienna Scientific Cluster (VSC3). R.R. gratefully acknowledges I. Rehberg for supporting his attendance to ICMF19. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | info:eu-repo/grantAgreement/RSF//19-12-00209; Unknotting of quasi-two-dimensional ferrogranular networks by in-plane homogeneous magnetic fields / P. A. Sánchez, J. Miller, S. S. Kantorovich, et al. — DOI 10.1016/j.jmmm.2019.166182 // Journal of Magnetism and Magnetic Materials. — 2020. — Vol. 499. — 166182.; 3048853; Final; All Open Access, Green; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076352645&doi=10.1016%2fj.jmmm.2019.166182&partnerID=40&md5=bea4b2e77aa1bd40b91e3406e8938d60; http://arxiv.org/pdf/1910.00317; http://elar.urfu.ru/handle/10995/101648; 85076352645 |
| DOI: | 10.1016/j.jmmm.2019.166182 |
| الاتاحة: | http://elar.urfu.ru/handle/10995/101648 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076352645&doi=10.1016%2fj.jmmm.2019.166182&partnerID=40&md5=bea4b2e77aa1bd40b91e3406e8938d60 http://arxiv.org/pdf/1910.00317 https://doi.org/10.1016/j.jmmm.2019.166182 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.3CE05417 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jmmm.2019.166182 |
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