Properties of plate-like carbonyl iron particle for magnetorheological fluid

Shilan, Salihah Tan; Mazlan, Saiful Amri; Khairi, Muntaz Hana Ahmad; Ubaidillah, Ubaidillah

doi:10.1088/1742-6596/776/1/012033

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…Particle morphology also has great influence on the properties of magnetorheological fluids. e characterization, magnetic, and rheological properties of plate-like carbonyl iron particle (CIP) in comparison with conventional spherical CIP were studied by Shilan et al, and they indicated that the plate-like CIP obtained higher saturation magnetization (about 8%) than that of the spherical particles [17]. Moreover, a nonspherically shaped iron particle-based magnetorheological (MR) fluid, particularly flake-shaped, is synthesized to evaluate the performance of an MR brake by Patel et al, and it was shown that flake-shaped particle-based MR fluid with 70% weight fraction of iron particles exhibits 17% higher breaking torque at relatively low magnetic field strength compared to spherically shaped MR fluid with 72% particle weight fraction [18].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Drive Plate with Different Surface Textures on the Property of Carbonyl Iron‐Based Magnetorheological Fluid

He¹,

Wang²,

Li-li³

et al. 2020

Advances in Materials Science and Engineering

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Aiming to study the effect of drive plate with different surface topographies on the wear property of magnetorheological fluid (MRF), some specific experiments are carried out and analyzed in this paper. Firstly, experiment materials and test methods for MRF are elaborated, and four different surface topography drive plates are designed and manufactured. MRF test-bed is built up to test the rheological properties of MRF. Moreover, the surface morphology of particles is taken using a scanning electron microscope (SEM). Finally, experimental results show that there are remarkable influences on tribological properties of carbonyl iron-based MRF with different drive plates. Therefore, the drive plate with specific surface topography can meet the needs of different MRF transmission systems.

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Section: Introductionmentioning

confidence: 99%

Influence of the Drive Plate with Different Surface Textures on the Property of Carbonyl Iron‐Based Magnetorheological Fluid

He¹,

Wang²,

Li-li³

et al. 2020

Advances in Materials Science and Engineering

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“…However, weak sedimentation stability would be the main issue as a consequence of the large density difference between CI powder and carrier fluids [4]. Many methods were studied to enhance sedimentation stability, such as modifying morphology magnetic particles [5]- [13] and introducing nanoparticles as addictive [14]- [21] on MR fluids. Among those two methods, nanoparticles addition was the simplest and fastest way not only to increase sedimentation stability but also enhance the rheological properties of MR fluids [22].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hard Magnetic CoFe<sub>2</sub>O<sub>4</sub> Nanoparticles Additives on Improving Rheological Properties and Dispersion Stability of Magnetorheological Fluids

Nugroho

Sarifuddin

Purnama

et al. 2020

KEM

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Increasing dispersion stability is the main issue in recent research at magnetorheological (MR) fluids. The presentation of nanoparticle addictive in MR fluids is an effective method not only to increase dispersion stability but also increasing performance in MR fluids. In this study, the effect of hard magnetic CoFe2O4 nanoparticles addition on rheological properties and dispersion stabilization had been studied. Rheological properties were investigated using a rheometer at room temperature. The result showed that the addition of CoFe2O4 nanoparticles 1wt% in particles of MR fluids were improving the shear stress and viscosity of MR fluids. Both MR fluids with and without nanoadditives behaving like a Newtonian fluid at the off-state condition and act like Bingham fluid at the on-state condition. Moreover, MR fluid with CoFe2O4 additives had a higher sedimentation ratio than MR fluids without additives.

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“…In a normal state condition, MR fluids have a liquid-like phase. This MRF could be transformed rapidly to solid-like structure under external magnetic fields and reversed to a liquid-like structure when removing the external magnetic fields [3]. Due to this unique characteristic, MR fluids have been used as MR shock absorber [4,5], break [6], clutch [7,8], seismic damper [9,10], prosthetic leg [11,12] and haptic sensors [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Modifications of magnetic particles at some morphologies such as rod [17], plate [3,17,18], flower-like [19], wire [20], octahedral [21] were reported to increase the rheological properties. However, the continuous applications of MRF changed the morphology of magnetic particles, then reduced rheological properties [22].…”

Section: Introductionmentioning

confidence: 99%

The effect of Mn_xCo_(1-x)Fe₂O₄ with x = 0, 0.25 and 0.5 as nanoparticles additives in magnethorheological fluid

Nugroho

Ubaidillah

Purnama

et al. 2020

Smart Mater. Struct.

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This study focused on the effect of manganese substituted cobalt ferrite (Mn x Co 1-x Fe 2 O 4 ) nanoparticles with different mole ratios (x = 0, 0.25 and 0.5) in magnetorheological fluids (MRF). The nanoparticles were synthesized using co-precipitation method. The irregularly-spherical form of the nanoparticles was observed/confirmed using a field emission scanning (FESEM) microscope. The vibrating sample magnetometer (VSM) was performed to analyze the effect of nanoparticles in MRF on their magnetic properties. The VSM test results show that the nanoparticles have a negative effect on the magnetic properties of MRF. The higher magnetic saturation of nanoparticles will reduce more magnetic saturation in MRF. This phenomenon shows that the direction of the magnetic field from the cobalt manganese ferrite has the opposite direction to MRF. It is also identified that the field-dependent rheological properties of MRF show that the addition of nanoparticles increases the yield stress of MRF results except for Mn 0.5 Co 0.5 Fe 2 O 4 which leads to the reduction of the yield stress of MRF.

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Properties of plate-like carbonyl iron particle for magnetorheological fluid

Cited by 6 publications

References 13 publications

Influence of the Drive Plate with Different Surface Textures on the Property of Carbonyl Iron‐Based Magnetorheological Fluid

Influence of the Drive Plate with Different Surface Textures on the Property of Carbonyl Iron‐Based Magnetorheological Fluid

Effect of Hard Magnetic CoFe<sub>2</sub>O<sub>4</sub> Nanoparticles Additives on Improving Rheological Properties and Dispersion Stability of Magnetorheological Fluids

The effect of Mn_xCo_(1-x)Fe₂O₄ with x = 0, 0.25 and 0.5 as nanoparticles additives in magnethorheological fluid

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Properties of plate-like carbonyl iron particle for magnetorheological fluid

Cited by 6 publications

References 13 publications

Influence of the Drive Plate with Different Surface Textures on the Property of Carbonyl Iron‐Based Magnetorheological Fluid

Influence of the Drive Plate with Different Surface Textures on the Property of Carbonyl Iron‐Based Magnetorheological Fluid

Effect of Hard Magnetic CoFe<sub>2</sub>O<sub>4</sub> Nanoparticles Additives on Improving Rheological Properties and Dispersion Stability of Magnetorheological Fluids

The effect of MnxCo(1-x)Fe2O4 with x = 0, 0.25 and 0.5 as nanoparticles additives in magnethorheological fluid

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The effect of Mn_xCo_(1-x)Fe₂O₄ with x = 0, 0.25 and 0.5 as nanoparticles additives in magnethorheological fluid