Electro-kinetics of charged-sphere suspensions explored by integral low-angle super-heterodyne laser Doppler velocimetry
Electro-kinetics of charged-sphere suspensions explored by integral low-angle super-heterodyne laser Doppler velocimetry
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通过积分低角度超外差激光多普勒测速探索带电球悬浮体的电动学
DOI:
10.1088/0953-8984/24/46/464109
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
G. Nägele
中科院分区:
文献类型:
--
作者:
T. Palberg;T. K¨oller;B. Sieber;H. Schweinfurth;H. Reiber;G. Nägele
We investigated the flow behaviour of colloidal charged-sphere suspensions using a newly designed integral low-angle super-heterodyne laser Doppler velocimetry instrument, which combines the advantages of several previous approaches. Sample conditions ranged from strong electrostatic interactions with pronounced short-range order to individual particles with no spatial correlations. The obtained power spectra correspond to diffusion broadened velocity distributions across the complete sample cross section. The excellent performance of the instrument is highlighted in detail by the example of electro-kinetic flow of suspensions in a closed cell of a rectangular cross section. We demonstrate the excellent performance of our approach with the example of electro-phoretic–electro-osmotic experiments, showing that a comprehensive flow characterization becomes possible by analysing the measured electro-kinetic mobilities, the flow-profile, an effective diffusion coefficient and the integrated scattering density. We briefly discuss present limitations, possible extensions and interesting applications in other fields.
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DOI:
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发表时间:
1989
期刊:
影响因子:
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作者:
T. Palberg;H. Versmold
通讯作者:
H. Versmold
DOI:
--
发表时间:
2006
期刊:
影响因子:
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DOI:
--
发表时间:
1996
期刊:
影响因子:
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作者:
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通讯作者:
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M. Medebach;R. C. Jordán;H. Reiber;H. Schöpe;R. Biehl;M. Evers;D. Hessinger;J. Oláh;T. Palberg;E. Schönberger;P. Wette
通讯作者:
P. Wette
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
M. Medebach;T. Palberg
通讯作者:
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