Rheological properties of magnetorheological suspensions based on core–shell structured polyaniline-coated carbonyl iron particles

2010 ◽  
Vol 19 (11) ◽  
pp. 115008 ◽  
Author(s):  
M Sedlačík ◽  
V Pavlínek ◽  
P Sáha ◽  
P Švrčinová ◽  
P Filip ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Carbonyl Iron ◽  
Core Shell ◽  
Iron Particles ◽  
Magnetorheological Suspensions

Performance of Magnetorheological Elastomer Based Silicone/SAIB

2018 ◽  
Vol 772 ◽  
pp. 61-65
Author(s):  
Muntaz Hana Ahmad Khairi ◽  
Saiful Amri Mazlan ◽  
Ubaidillah ◽  
Siti Aishah Abdul Aziz ◽  
Norhiwani Mohd Hapipi
Keyword(s):  
Rheological Properties ◽  
Silicone Rubber ◽  
Carbonyl Iron ◽  
Excitation Frequency ◽  
Rubber Matrix ◽  
Iron Particles ◽  
Magnetorheological Elastomer ◽  
Magnetorheological Elastomers ◽  
Mr Effect ◽  
Strain Dependent

This study introduces a sucrose acetate isobutyrate (SAIB) as an additive of magnetorheological elastomers (MREs) to be added in silicone rubber matrix and carbonyl iron particles (CIPs) as their filler. The CIPs were fixed at 60 wt% and two types of MREs sample were fabricated which are isotropic and anisotropic. Rheological properties related to shear storage modulus were measured using a rheometer (MCR 302, Anton Paar). The experimental results demonstrated that the magnetorheological (MR) effect of anisotropic MREs-based Silicone/SAIB was 126 % as compared to isotropic MREs-based Silicone/SAIB, 64%. The fabricated MREs samples were frequency and strain dependent. The relative MR effect for both samples showed decreasing trend with the increment of strain amplitude and excitation frequency.

Improved rheological properties of dimorphic magnetorheological gels based on flower-like carbonyl iron particles

2017 ◽  
Vol 416 ◽  
pp. 772-780 ◽  
Author(s):  
Pingan Yang ◽  
Miao Yu ◽  
Hongping Luo ◽  
Jie Fu ◽  
Hang Qu ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Carbonyl Iron ◽  
Iron Particles

A comparison of field-dependent rheological properties between spherical and plate-like carbonyl iron particles-based magneto-rheological fluids

2016 ◽  
Vol 25 (9) ◽  
pp. 095025 ◽  
Author(s):  
Salihah Tan Shilan ◽  
Saiful Amri Mazlan ◽  
Yasushi Ido ◽  
Abdollah Hajalilou ◽  
Balachandran Jeyadevan ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Carbonyl Iron ◽  
Iron Particles ◽  
Field Dependent ◽  
Magneto Rheological

The Field-Dependent Rheological Properties of Magnetorheological Grease Based on Carbonyl-Iron-Particles

2016 ◽  
Vol 25 (9) ◽  
pp. 095043 ◽  
Author(s):  
N Mohamad ◽  
S A Mazlan ◽  
Ubaidillah ◽  
Seung-Bok Choi ◽  
M F M Nordin
Keyword(s):  
Rheological Properties ◽  
Carbonyl Iron ◽  
Iron Particles ◽  
Field Dependent

scholarly journals Gelatine-Coated Carbonyl Iron Particles and Their Utilization in Magnetorheological Suspensions

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2503
Author(s):  
Tomas Plachy ◽  
Patrik Rohrer ◽  
Pavlina Holcapkova
Keyword(s):  
Magnetic Field ◽  
Liquid Medium ◽  
Carbonyl Iron ◽  
Magnetic Particles ◽  
Silicone Oil ◽  
Rheological Parameters ◽  
Iron Particles ◽  
Magnetorheological Suspensions ◽  
Magnetorheological Suspension ◽  
Dynamic Yield

This study demonstrates the formation of biocompatible magnetic particles into organized structures upon the application of an external magnetic field. The capability to create the structures was examined in silicone-oil suspensions and in a gelatine solution, which is commonly used as a blood plasma expander. Firstly, the carbonyl iron particles were successfully coated with gelatine, mixed with a liquid medium in order to form a magnetorheological suspension, and subsequently the possibility of controlling their rheological parameters via a magnetic field was observed using a rotational rheometer with an external magnetic cell. Scanning electron microscopy, infrared spectroscopy, and thermogravimetric analysis confirmed the successful coating process. The prepared magnetorheological suspensions exhibited a transition from pseudoplastic to Bingham behavior, which confirms their capability to create chain-like structures upon application of a magnetic field, which thus prevents the liquid medium from flowing. The observed dynamic yield stresses were calculated using Robertson–Stiff model, which fit the flow curves of the prepared magnetorheological suspensions well.

Magnetorheological fluids based on core–shell carbonyl iron particles modified by various organosilanes: synthesis, stability and performance

Soft Matter ◽  
2021 ◽  
Author(s):  
Alena Ronzova ◽  
Michal Sedlacik ◽  
Martin Cvek
Keyword(s):  
Carbonyl Iron ◽  
Magnetorheological Fluids ◽  
Core Shell ◽  
Iron Particles ◽  
Coated Particles ◽  
Mr Fluids ◽  
And Performance

Implications of the organosilane-coated particles on the utility properties of MR fluids.

Enhancement of the rheological properties of magnetorheological elastomer via polystyrene‐grafted carbonyl iron particles

2021 ◽  
pp. 50860
Author(s):  
Siti Khumaira Mohd Jamari ◽  
Nur Azmah Nordin ◽  
U. Ubaidillah ◽  
Siti Aishah Abdul Aziz ◽  
Saiful Amri Mazlan ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Carbonyl Iron ◽  
Iron Particles ◽  
Magnetorheological Elastomer

Aqueous Magnetorheological Suspensions of Composite Carbonyl Iron Particles

2010 ◽  
Author(s):  
H. B. Cheng ◽  
L. Zuo ◽  
Q. J. Zhang ◽  
N. M. Wereley
Keyword(s):  
Carbonyl Iron ◽  
Coating Layer ◽  
Organic Reagent ◽  
Vibrating Sample Magnetometer ◽  
Iron Particles ◽  
Field Source ◽  
Parallel Disk ◽  
Magnetorheological Suspensions ◽  
The Stability ◽  
Scanning Electron

Aqueous magnetorheological (MR) suspensions of composite carbonyl iron particles (CCIPs) were prepared with carbonyl iron particles and an organic reagent coating (N-polyether, N, N, N,-acetyloxy) 2, 6-aminion-1, 3, 4-thiadiazole dimer (EAMTD). The properties of the CCIPs, including morphology, structure, and magnetic behaviors, were characterized using scanning electron microscopy (SEM) and a vibrating sample magnetometer (VSM). The MR properties of the aqueous MR suspensions were analyzed via a strain-controlled parallel disk rheometer equipped with a magnetic field source. The results show that the stability and redispersibility of the aqueous MR suspensions were greatly improved, and the yield stress is influenced by the EAMTD coating layer of the CCIPs.

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