Modeling perfluorinated polyether based MR fluids

K. H. Gudmundsson*, F. Jonsdottir, F. Thorsteinsson, O. Gutfleisch

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study investigates the field-induced rheological characteristics of perfluorinated polyether (PFPE) based magnetorheological (MR) fluids. Four PFPE based MR fluid samples were prepared, each with a different solid loading. All samples contain a single grade of carbonyl iron powder with an average particle diameter of 2 μm. The PFPE base fluid enhances sedimentation stability and its composition and qualities are introduced in the paper. The magnetization characteristics of a fluid sample are measured and its magnetic properties are compared to known models from the literature. The shear yield stress in all fluid samples is investigated experimentally, as a function of solid loading and the magnetic flux density. The results are compared to established shear stress models for MR fluids. Model parameters are set to conform to the PFPE based MR fluids. The PFPE based MR fluids are shown to have a comparable shear yield stress, when compared to commercially available MR fluids with a comparable particle loading and particle size.

Original languageEnglish
Title of host publicationElectro-Rheological Fluids and Magneto-Rheological Suspensions - Proceedings of the 12th International Conference
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages485-491
Number of pages7
ISBN (Print)9814340227, 9789814340229
DOIs
Publication statusPublished - 2011
Event12th International Conference on Electrorheological Fluids and Magnetorheological Suspensions, ERMR 2010 - Philadelphia, PA, United States
Duration: 16 Aug 201020 Aug 2010

Publication series

NameElectro-Rheological Fluids and Magneto-Rheological Suspensions - Proceedings of the 12th International Conference

Conference

Conference12th International Conference on Electrorheological Fluids and Magnetorheological Suspensions, ERMR 2010
Country/TerritoryUnited States
CityPhiladelphia, PA
Period16/08/1020/08/10

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