Comparison of electrorheological measurements based on different methods of electric field generation

0427857 - ÚH 2015 RIV DE eng J - Článek v odborném periodiku
Peer, Petra - Stěnička, M. - Filip, Petr - Pavlinek, V.
Comparison of electrorheological measurements based on different methods of electric field generation.
Applied Rheology. Roč. 24, č. 4 (2014), 42875-1-42875-4. ISSN 1430-6395. E-ISSN 1617-8106
Grant CEP: GA ČR(CZ) GAP105/11/2342
Institucionální podpora: RVO:67985874
Klíčová slova: rheology * electrorheology * rheometry * PANI powder * silicone oil
Kód oboru RIV: BK - Mechanika tekutin
Impakt faktor: 1.078, rok: 2014
http://www.ar.ethz.ch/TMPPDF/24394938472.192/ApplRheol_24_42875.pdf

Electrorheological measurements represent a key approach in characterizing the efficiency of electrorheological fluids. The rotational rheometers, the Physica MCR 501 (Anton Paar) equipped with an electrorheological cell and the Bohlin Gemini CVOR 150 (Malvern Instruments) modified for electrorheological experiments generate an electric field in two completely different ways. Each of the two generations has a specific influence on electrorheological measurements. The experimental data were obtained and compared for a suspension of polyaniline powders mixed (10 wt%) in silicone oil. For a concentric-cylinders arrangement, it was shown that the data are fully comparable for both rheometers. However, for a parallel-plate arrangement, the data using the Physica MCR 501 provide higher values in comparison with both the corresponding plate-plate data obtained with the Bohlin Gemini CVOR 150 and with the mutually comparable concentric cylinders data.
Trvalý link: http://hdl.handle.net/11104/0235694