Rheological behavior of magnetic nanofluids containing spherical nanoparticles of Fe–Ni

Katiyar, Ajay; Singh, Amit; Shukla, Prateek; Nandi, Tandra

doi:10.1016/j.powtec.2012.02.032

Cited by 48 publications

(25 citation statements)

References 17 publications

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“…However fewer claimed their work suitable for bulk synthesis with controlled particle size distribution. A. Katiyaret al have reported synthesis of Fe-Ni nanoparticles with controlled morphology for preparing magnetic nanofluid 14 . In the present study, span-80 stabilized spherical silver nanoparticles were synthesized via forming a microemulsion by high energy methods 11 .…”

Section: Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Synthesis of Sorbitan Ester Stabilized Uniform Spherical Silver Nanoparticles

Shukla¹,

Nandi²,

Palsingh³

2016

Orient. J. Chem

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Controllable synthesis of uniform spherical silver nanoparticles was investigated by carrying out a chemical reduction reaction in a micro emulsion, formed under high shear mixing of aqueous silver nitrate solution and 2-ethyl hexanol as organic phase. Sodium borohydride was used as reducing agent and sorbitan monooleate (span-80) as stabilizer. Further, a study has been performed to observe the effect of silver nitrate concentration, reducing agent concentration, amount of surfactant and organic phase on the size and shape of silver nanoparticles. Transmission electron microscopy (TEM) and dynamic light scattering (DLS) techniques were used for elucidating the shape, size and size distribution of the synthesized silver nanoparticles. Crystal structure of silver nanoparticles thus prepared has been studied by X-ray diffraction analysis (XRD). Uniform silver nanoparticles of average diameter 15-20 nm with high purity and well crystalline nature were obtained under optimized set of conditions. The results of synthesis of these nanoparticles in present study were excellent and may also be used at larger scale.

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Section: Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Synthesis of Sorbitan Ester Stabilized Uniform Spherical Silver Nanoparticles

Shukla¹,

Nandi²,

Palsingh³

2016

Orient. J. Chem

Self Cite

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“…Inspired by these methods, this study aims to extend the dimorphic systems to the MRGs research for improving the rheological properties. However, the saturation magnetization value of the magnetic particles gradually decreased with the decrease of particles size [22][23][24], which may preclude the MRGs to obtain high yield stress [19]. And due to the strong fiber-to-fiber interactions and high wetted area, the particle loading is lower than spherical particles.…”

Section: Introductionmentioning

confidence: 99%

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

Yang

Luo

et al. 2017

Applied Surface Science

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“…There are many studies in literature about the rheological behaviour of nanofluids (Bouhamed et al 2013;Cabaleiro et al 2013a;Chen et al 2007;Chen 2009;Mariano et al 2013;Nguyen et al 2007), and this includes a large number based on magnetorheological behaviour of nanofluids (De Vicente et al 2011a;Felicia and Philip 2014;Katiyar et al 2012;Mertelj et al 2013). However, it is important to go further in the study of the rheological behaviour of nanofluids through the precise characterization of physical parameters like particle type, shape, size, dispersion stability, concentration or applied magnetic field, and this is the main motivation of the present work.…”

Section: Resultsmentioning

confidence: 99%

“…12 shows the shear stress (σ) of this test versus shear rate (γ ), where low concentrated nanofluids have a small yield stress, and for low magnetic field, the behaviour of the sample is nearly Newtonian. Katiyar et al (2012) found a strong change in the yield stress from 10 to 240 Pa for a 10 wt% Fe-Ni nanofluid when an increasing magnetic flux density from 0 to 1 T was applied, obtaining an excellent magnetorheological nanofluid with damping applications. The pseudoplastic behaviour of this nanofluid reveals that interactions between nanoparticles are becoming weaker.…”

Section: Magnetic Field and Concentration Effects On Rotational Testsmentioning

confidence: 93%

“…(Bombard and De Vicente 2012;Bossis et al 2002;De Vicente and Berli 2013;De Vicente et al 2011a;De Vicente and Ramírez 2007;De Vicente et al 2011b;Pastoriza-Gallego et al 2013a;Patel 2011;Rodríguez-López et al 2013;Sedlacik et al 2013;Shahrivar and De Vicente 2014;Xu et al 2013). Katiyar et al (2012) reported a remarkable viscosity enhancement for magnetorheological nanofluids containing more than 8 % of Fe-Ni dispersed nanoparticles in a paraffin-based oil, when a 1-T magnetic field is applied. Zafarani-Moattar and Majdan-Cegincara (2013a) carried out a magnetorheological study of Fe 3 O 4 nanoparticles coated with oleic acid dispersed in polyethylene glycol to verify their chain-like structure.…”

Section: Introductionmentioning

confidence: 99%

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Magnetorheological behaviour of propylene glycol-based hematite nanofluids

et al. 2015

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The study of nanofluids represents an innovative research area with remarkable development. Properties of ferric magnetic nanofluids, also denoted as ferrofluids, under the influence of an external magnetic field have attracted increasing attention. A set-up for performing rheological and magnetorheological tests of propylene glycol-based hematite (α-Fe 2 0 3 ) nanofluids is presented. The nanoparticle concentration dependence of the magnetorheological properties of this nanofluid was analysed at 303.15 K, ranging from 0.2 to 6.18 vol%, while external magnetic fields up to 0.7 T were applied. The rheological and magnetorheological experiments were performed using a rotational Physica MCR 101 rheometer, (Anton Paar), which is equipped with a magnetorheological device (MRD 170/1T) to control the magnetic flux density. A detailed study about the thixotropic behaviour of the samples as well as viscosity curves of magnetization and demagnetization responses, an analysis of the fractal dimension of the aggregates and conclusions about the magnetic field effect on the size of formed aggregates as a function of concentration has been developed in this work. Rheological tests show that the nanofluid studied presents non-Newtonian shear thinning, thixotropic and viscoelastic behaviour. Finally, the magnetic saturation of the material has been studied.

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Rheological behavior of magnetic nanofluids containing spherical nanoparticles of Fe–Ni

Cited by 48 publications

References 17 publications

Synthesis of Sorbitan Ester Stabilized Uniform Spherical Silver Nanoparticles

Synthesis of Sorbitan Ester Stabilized Uniform Spherical Silver Nanoparticles

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

Magnetorheological behaviour of propylene glycol-based hematite nanofluids

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