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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la901784k
|2 doi
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|a pubmed24n0641.xml
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|a (NLM)19856989
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|a DE-627
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|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Hemmen, Henrik
|e verfasserin
|4 aut
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| 245 |
1 |
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|a The isotropic-nematic interface in suspensions of Na-fluorohectorite synthetic clay
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 28.12.2009
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|a Date Revised 27.10.2009
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Colloidal suspensions of Na-fluorohectorite synthetic clay platelets in saline water exhibit coexisting isotropic and nematic phases, due to gravitational separation of the polydisperse particles. We study the ordering of the platelets at the interfaces between various coexisting phases. Four different experimental techniques are employed: visual observation of birefringence, synchrotron wide angle and small-angle X-ray scattering, and magnetic resonance imaging. We find that at the narrow isotropic sol-nematic sol interface the platelets are lying horizontally, i.e. with their mean platelet normal along the vertical direction. The experiments indicate that the platelets align homeotropically both at the isotropic sol-nematic sol interface and at the nematic sol-wall interface. We further investigate the complex alignment effect of a horizontally applied magnetic field in the nematic sol, and we compare it with the adjacent nematic gel
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|a Journal Article
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|a Ringdal, Nils I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a De Azevedo, Eduardo N
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Engelsberg, Mario
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hansen, Elisabeth L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Méheust, Yves
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fossum, Jon O
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Knudsen, Kenneth D
|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 1999
|g 25(2009), 21 vom: 03. Nov., Seite 12507-15
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:25
|g year:2009
|g number:21
|g day:03
|g month:11
|g pages:12507-15
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| 856 |
4 |
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|u http://dx.doi.org/10.1021/la901784k
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