|
Surface Tension of Magneto-Rheological Fluids |
Journal of Magnetics, Volume 21, Number 2, 30 Jun 2016, Pages 261-265 |
Shai Rahimi (Faculty of Aerospace Engineering, Lady Davis Bldg., Technion, Israel Institute of Technology), Daniel Weihs * (Faculty of Aerospace Engineering, Lady Davis Bldg., Technion, Israel Institute of Technology) |
Abstract |
Surface tension is a major factor in the thermodynamics as well as fluid properties of Magneto-Rheological Fluids (MRF). We measured the surface tension of an MRF using two different methods. A wettability characterization based on contact angles measurements for the fluid interacting with two different surfaces was conducted. A hydrocarbon based commercial MRF with more than 80% solid weight, placed on quartz and poly-tetra-fluoroethylene (PTFE) surfaces was used. We measured the fluids' surface tension value by means of contact angles measurements and by the falling drop method.
|
Keywords: rheology; magnetic fluids; surface tension |
DOI: http://dx.doi.org/10.4283/JMAG.2016.21.2.261 |
Full Text: PDF |
|
|
|
|
|