The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles
This paper presents dynamic viscoelastic properties of magnetorheological (MR) grease under variation of magnetic fields and magnetic particle fractions. The tests to discern the field-dependent properties are undertaken using both rotational and oscillatory shear rheometers. As a first step, the MR...
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| Format: | Article |
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Institute of Physics Publishing
2016
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| _version_ | 1796861788257517568 |
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| author | Mohamad, N. Mazlan, S. A. Ubaidillah, Ubaidillah Choi, S. B. Nordin, M. F. M. |
| author_facet | Mohamad, N. Mazlan, S. A. Ubaidillah, Ubaidillah Choi, S. B. Nordin, M. F. M. |
| author_sort | Mohamad, N. |
| collection | ePrints |
| description | This paper presents dynamic viscoelastic properties of magnetorheological (MR) grease under variation of magnetic fields and magnetic particle fractions. The tests to discern the field-dependent properties are undertaken using both rotational and oscillatory shear rheometers. As a first step, the MR grease is developed by dispersing the carbonyl iron (CI) particles into grease medium with a mechanical stirrer. Experimental data are obtained by changing the magnetic field from 0 to 0.7 T at room temperature of 25 °C. It is found that a strong Payne effect limits the linear viscoelastic region of MR grease at strains above 0.1%. The results exhibit a high dynamic yield stress which is equivalent to Bingham plastic rheological model, and show relatively good MR effect at high shear rate of 2000 s-1. In addition, high dispersion of the magnetic particles and good thermal properties are proven. The results presented in this work directly indicate that MR grease is a smart material candidate that could be widely applicable to various fields including vibration control. |
| first_indexed | 2024-03-05T20:01:43Z |
| format | Article |
| id | utm.eprints-71572 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:01:43Z |
| publishDate | 2016 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | utm.eprints-715722017-11-20T08:28:24Z http://eprints.utm.my/71572/ The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles Mohamad, N. Mazlan, S. A. Ubaidillah, Ubaidillah Choi, S. B. Nordin, M. F. M. TA Engineering (General). Civil engineering (General) This paper presents dynamic viscoelastic properties of magnetorheological (MR) grease under variation of magnetic fields and magnetic particle fractions. The tests to discern the field-dependent properties are undertaken using both rotational and oscillatory shear rheometers. As a first step, the MR grease is developed by dispersing the carbonyl iron (CI) particles into grease medium with a mechanical stirrer. Experimental data are obtained by changing the magnetic field from 0 to 0.7 T at room temperature of 25 °C. It is found that a strong Payne effect limits the linear viscoelastic region of MR grease at strains above 0.1%. The results exhibit a high dynamic yield stress which is equivalent to Bingham plastic rheological model, and show relatively good MR effect at high shear rate of 2000 s-1. In addition, high dispersion of the magnetic particles and good thermal properties are proven. The results presented in this work directly indicate that MR grease is a smart material candidate that could be widely applicable to various fields including vibration control. Institute of Physics Publishing 2016 Article PeerReviewed Mohamad, N. and Mazlan, S. A. and Ubaidillah, Ubaidillah and Choi, S. B. and Nordin, M. F. M. (2016) The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles. Smart Materials and Structures, 25 (9). ISSN 0964-1726 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988407741&doi=10.1088%2f0964-1726%2f25%2f9%2f095043&partnerID=40&md5=901a6d4c2dbbf94e26c72c33944818cc |
| spellingShingle | TA Engineering (General). Civil engineering (General) Mohamad, N. Mazlan, S. A. Ubaidillah, Ubaidillah Choi, S. B. Nordin, M. F. M. The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles |
| title | The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles |
| title_full | The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles |
| title_fullStr | The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles |
| title_full_unstemmed | The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles |
| title_short | The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles |
| title_sort | field dependent rheological properties of magnetorheological grease based on carbonyl iron particles |
| topic | TA Engineering (General). Civil engineering (General) |
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