Dynamic scaling of ferromagnetic micro-rod clusters under a weak magnetic field
A controlled configurational change of micro-clusters in suspensions is essential for many smart material applications. In this paper, the dynamic process of ferromagnetic microrod clusters (FMRCs) under an external magnetic field was studied as a function of the cluster size N and the applied field B. The FMRCs rearranged from a side-by-side raft-like structure to an end-to-end chain-like structure, originating from coupled motions through the field-driven alignment of both ferromagnetic microrods and FMRCs. A theoretical model based on an extension of a zig-zag chain was developed, and both the cluster length and orientation could be characterized by a retardation time constant τ, with a relationship τ ∼ N2/B, which agrees well with the experimental results, τ ∼ N2.2±0.2/B0.8±0.1. Such a model can be used to predict other cluster dynamics or the magneto-elastic behavior of other soft matters consisting of FMRCs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
Soft matter - 12(2016), 40 vom: 12. Okt., Seite 8440-8447 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cheng, Rui [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 18.07.2018 Date Revised 18.07.2018 published: Print Citation Status PubMed-not-MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM265087880 |
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| 100 | 1 | |a Cheng, Rui |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Dynamic scaling of ferromagnetic micro-rod clusters under a weak magnetic field |
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| 500 | |a Date Completed 18.07.2018 | ||
| 500 | |a Date Revised 18.07.2018 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a A controlled configurational change of micro-clusters in suspensions is essential for many smart material applications. In this paper, the dynamic process of ferromagnetic microrod clusters (FMRCs) under an external magnetic field was studied as a function of the cluster size N and the applied field B. The FMRCs rearranged from a side-by-side raft-like structure to an end-to-end chain-like structure, originating from coupled motions through the field-driven alignment of both ferromagnetic microrods and FMRCs. A theoretical model based on an extension of a zig-zag chain was developed, and both the cluster length and orientation could be characterized by a retardation time constant τ, with a relationship τ ∼ N2/B, which agrees well with the experimental results, τ ∼ N2.2±0.2/B0.8±0.1. Such a model can be used to predict other cluster dynamics or the magneto-elastic behavior of other soft matters consisting of FMRCs | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Zhu, Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Weijie |e verfasserin |4 aut | |
| 700 | 1 | |a Mao, Leidong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Yiping |e verfasserin |4 aut | |
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