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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b02046
|2 doi
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|a pubmed24n1001.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Zhang, Qindan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Self-Sustained Coalescence-Breakup Cycles of Ferrodrops under a Magnetic Field
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| 264 |
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|c 2019
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 23.09.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The self-sustained coalescence-breakup cycles of ferrodrops were investigated for the first time by a high-speed camera under various magnetic fields. Under an axial magnetic field, the upper ferrodrop would deform into a conic shape before coalescing with the bottom ferropeak. Within 0.2 ms after coalescence, the minimum width of the expanding neck obeys a power-law relationship with time, while the exponents increase with the magnetic field and deviate with a decreasing trend in the later coalescence. The cone angle of the upper ferrodrop before coalescence gradually decreases while it increases before breakup with the magnetic field. A critical magnetic field around 35 mT was reported, above which the ferrofluid column undergoes the periodic phenomenon of coalescence and breakup. The frequency for the whole coalescence-breakup cycle increases exponentially with the applied magnetic field. A simplified force balance allows capturing the periodic mechanism involved in this driven harmonic oscillator
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|a Journal Article
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| 700 |
1 |
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|a Wu, Yining
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Youguang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Huai Z
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 35(2019), 37 vom: 17. Sept., Seite 12028-12034
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:35
|g year:2019
|g number:37
|g day:17
|g month:09
|g pages:12028-12034
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|u http://dx.doi.org/10.1021/acs.langmuir.9b02046
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|d 35
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|h 12028-12034
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