Field-dependent viscoelastic properties of graphite-based magnetorheological grease
This paper highlights the effect of graphite on the dynamic viscoelastic properties of magnetorheological grease (MRG). Two types of MRG namely MRG and graphite-MRG, GMRG with 0 wt.% and 10 wt. % of graphite respectively was synthesized by using a mechanical stirrer. The rheological properties of bo...
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Penerbit Universiti Malaysia Pahang
2022
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my.utem.eprints.262422023-03-02T16:23:55Z http://eprints.utem.edu.my/id/eprint/26242/ Field-dependent viscoelastic properties of graphite-based magnetorheological grease Nazmi, Nurhazimah N.A.M. Nasir Mazlan, Saiful Amri N. A Nordin M.A.A Rahman N. Mohamad Shair, Ezreen Farina This paper highlights the effect of graphite on the dynamic viscoelastic properties of magnetorheological grease (MRG). Two types of MRG namely MRG and graphite-MRG, GMRG with 0 wt.% and 10 wt. % of graphite respectively was synthesized by using a mechanical stirrer. The rheological properties of both sample at various magnetic field strength from 0 to 0.603 T was analyzed via rheometer under oscillatory mode with strain ranging from 0.001 to 1% with fixed frequency at 1 Hz for strain sweep and frequency ranging from 0.1 to 80 Hz at a constant strain of 0.01 % for frequency sweep. Based on the result obtained, the value of storage and loss modulus are dependent on the graphite content. A high value of storage modulus was achieved in the GMRG sample at all applied magnetic field strengths within all frequency ranges. These phenomena related to the contribution of graphite to forming the chain structure with CIPs and offered a more stable and stronger structure as compared with MRG. Moreover, the reduction in the value of loss modulus in GMRG was noticed compared to MRG at on-state conditions reflected by the stable structure obtained by GMRG. Lastly, both samples displayed a strong solid-like (elastic) behavior due to the high value of storage modulus, G’ acquired compared to loss modulus, G’’ at all frequency ranges. Therefore, the utilization of graphite in MRG can be used in wide applications such as brake and seismic dampers. Penerbit Universiti Malaysia Pahang 2022-09 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/26242/2/31679.PDF Nazmi, Nurhazimah and N.A.M. Nasir and Mazlan, Saiful Amri and N. A Nordin and M.A.A Rahman and N. Mohamad and Shair, Ezreen Farina (2022) Field-dependent viscoelastic properties of graphite-based magnetorheological grease. International Journal of Automotive and Mechanical Engineering, 19 (3). pp. 9921-9927. ISSN 2229-8649 https://journal.ump.edu.my/ijame/article/view/6986/2571 10.15282/ijame.19.3.2022.04.0764 |
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This paper highlights the effect of graphite on the dynamic viscoelastic properties of magnetorheological grease (MRG). Two types of MRG namely MRG and graphite-MRG, GMRG with 0 wt.% and 10 wt. % of graphite respectively was synthesized by using a mechanical stirrer. The rheological properties of both sample at various magnetic field strength from 0 to 0.603 T was analyzed via rheometer under oscillatory mode with strain ranging from 0.001 to 1% with fixed frequency at 1 Hz for strain sweep and frequency ranging from 0.1 to 80 Hz at a constant strain of 0.01 % for frequency sweep. Based on the result obtained, the value of storage and loss modulus are dependent on the graphite content. A high value of storage modulus was achieved in the GMRG sample at all applied magnetic field strengths within all frequency ranges. These phenomena related to the contribution of graphite to forming the chain structure with CIPs and offered a more stable and stronger structure as compared with MRG. Moreover, the reduction in the value of loss modulus in GMRG was noticed compared to MRG at on-state conditions reflected by the stable structure obtained by GMRG. Lastly, both samples displayed a strong solid-like (elastic) behavior due to the high value of storage modulus, G’ acquired compared to loss modulus, G’’ at all frequency ranges. Therefore, the utilization of graphite in MRG can be used in wide applications such as brake and seismic dampers. |
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Nazmi, Nurhazimah N.A.M. Nasir Mazlan, Saiful Amri N. A Nordin M.A.A Rahman N. Mohamad Shair, Ezreen Farina |
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Nazmi, Nurhazimah N.A.M. Nasir Mazlan, Saiful Amri N. A Nordin M.A.A Rahman N. Mohamad Shair, Ezreen Farina Field-dependent viscoelastic properties of graphite-based magnetorheological grease |
author_facet |
Nazmi, Nurhazimah N.A.M. Nasir Mazlan, Saiful Amri N. A Nordin M.A.A Rahman N. Mohamad Shair, Ezreen Farina |
author_sort |
Nazmi, Nurhazimah |
title |
Field-dependent viscoelastic properties of graphite-based magnetorheological grease |
title_short |
Field-dependent viscoelastic properties of graphite-based magnetorheological grease |
title_full |
Field-dependent viscoelastic properties of graphite-based magnetorheological grease |
title_fullStr |
Field-dependent viscoelastic properties of graphite-based magnetorheological grease |
title_full_unstemmed |
Field-dependent viscoelastic properties of graphite-based magnetorheological grease |
title_sort |
field-dependent viscoelastic properties of graphite-based magnetorheological grease |
publisher |
Penerbit Universiti Malaysia Pahang |
publishDate |
2022 |
url |
http://eprints.utem.edu.my/id/eprint/26242/2/31679.PDF http://eprints.utem.edu.my/id/eprint/26242/ https://journal.ump.edu.my/ijame/article/view/6986/2571 |
_version_ |
1759693059024486400 |
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13.188404 |