Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance
This work proposes the use of quartz crystal microbalances (QCMs) as a method to analyze and characterize magnetorheological (MR) fluids. QCM devices are sensitive to changes in mass, surface interactions, and viscoelastic properties of the medium contacting its surface. These features make the QCM...
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MDPI AG
2015-12-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/15/12/29808 |
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| author | Jaime Rodriguez-López Pedro Castro Juan de Vicente Diethelm Johannsmann Luis Elvira Jose R. Morillas Francisco Montero de Espinosa |
| author_facet | Jaime Rodriguez-López Pedro Castro Juan de Vicente Diethelm Johannsmann Luis Elvira Jose R. Morillas Francisco Montero de Espinosa |
| author_sort | Jaime Rodriguez-López |
| collection | DOAJ |
| description | This work proposes the use of quartz crystal microbalances (QCMs) as a method to analyze and characterize magnetorheological (MR) fluids. QCM devices are sensitive to changes in mass, surface interactions, and viscoelastic properties of the medium contacting its surface. These features make the QCM suitable to study MR fluids and their response to variable environmental conditions. MR fluids change their structure and viscoelastic properties under the action of an external magnetic field, this change being determined by the particle volume fraction, the magnetic field strength, and the presence of thixotropic agents among other factors. In this work, the measurement of the resonance parameters (resonance frequency and dissipation factor) of a QCM are used to analyze the behavior of MR fluids in static conditions (that is, in the absence of external mechanical stresses). The influence of sedimentation under gravity and the application of magnetic fields on the shifts of resonance frequency and dissipation factor were measured and discussed in the frame of the coupled resonance produced by particles touching the QCM surface. Furthermore, the MR-fluid/QCM system has a great potential for the study of high-frequency contact mechanics because the translational and rotational stiffness of the link between the surface and the particles can be tuned by the magnetic field. |
| first_indexed | 2024-04-11T21:58:53Z |
| format | Article |
| id | doaj.art-d17d3030935049368b82b0d316e93aa7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T21:58:53Z |
| publishDate | 2015-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d17d3030935049368b82b0d316e93aa72022-12-22T04:01:01ZengMDPI AGSensors1424-82202015-12-011512304433045610.3390/s151229808s151229808Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal MicrobalanceJaime Rodriguez-López0Pedro Castro1Juan de Vicente2Diethelm Johannsmann3Luis Elvira4Jose R. Morillas5Francisco Montero de Espinosa6Institute of Physical and Information Technologies, CSIC, C/Serrano, 144, Madrid 28006, SpainInstitute of Physical and Information Technologies, CSIC, C/Serrano, 144, Madrid 28006, SpainDepartment of Applied Physics, Faculty of Sciences, University of Granada, c/Fuentenueva s/n, Granada 18071, SpainInstitute of Physical Chemistry, Clausthal University of Technology, Arnold-Sommerfeld-Str. 4, Clausthal Zellerfeld D-38678, GermanyInstitute of Physical and Information Technologies, CSIC, C/Serrano, 144, Madrid 28006, SpainDepartment of Applied Physics, Faculty of Sciences, University of Granada, c/Fuentenueva s/n, Granada 18071, SpainInstitute of Physical and Information Technologies, CSIC, C/Serrano, 144, Madrid 28006, SpainThis work proposes the use of quartz crystal microbalances (QCMs) as a method to analyze and characterize magnetorheological (MR) fluids. QCM devices are sensitive to changes in mass, surface interactions, and viscoelastic properties of the medium contacting its surface. These features make the QCM suitable to study MR fluids and their response to variable environmental conditions. MR fluids change their structure and viscoelastic properties under the action of an external magnetic field, this change being determined by the particle volume fraction, the magnetic field strength, and the presence of thixotropic agents among other factors. In this work, the measurement of the resonance parameters (resonance frequency and dissipation factor) of a QCM are used to analyze the behavior of MR fluids in static conditions (that is, in the absence of external mechanical stresses). The influence of sedimentation under gravity and the application of magnetic fields on the shifts of resonance frequency and dissipation factor were measured and discussed in the frame of the coupled resonance produced by particles touching the QCM surface. Furthermore, the MR-fluid/QCM system has a great potential for the study of high-frequency contact mechanics because the translational and rotational stiffness of the link between the surface and the particles can be tuned by the magnetic field.http://www.mdpi.com/1424-8220/15/12/29808TSM resonatormagnetorheological fluidQCMpositive resonant frequency shiftmicron-sized magnetic particlessedimentationmagnetic field intensity |
| spellingShingle | Jaime Rodriguez-López Pedro Castro Juan de Vicente Diethelm Johannsmann Luis Elvira Jose R. Morillas Francisco Montero de Espinosa Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance Sensors TSM resonator magnetorheological fluid QCM positive resonant frequency shift micron-sized magnetic particles sedimentation magnetic field intensity |
| title | Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance |
| title_full | Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance |
| title_fullStr | Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance |
| title_full_unstemmed | Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance |
| title_short | Colloidal Stability and Magnetic Field-Induced Ordering of Magnetorheological Fluids Studied with a Quartz Crystal Microbalance |
| title_sort | colloidal stability and magnetic field induced ordering of magnetorheological fluids studied with a quartz crystal microbalance |
| topic | TSM resonator magnetorheological fluid QCM positive resonant frequency shift micron-sized magnetic particles sedimentation magnetic field intensity |
| url | http://www.mdpi.com/1424-8220/15/12/29808 |
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