Comparative analysis of the structure of sterically stabilized ferrofluids on polar carriers by small-angle neutron scattering

Авдеев, М. В.; Аксенов, В. Л.; Bǎlǎșoiu, M.; Garamus, V. M.; Schreyer, A.; Török, Gy.; Rosta, L.; Bica, D.; Vékás, L.

doi:10.1016/j.jcis.2005.07.048

Cited by 52 publications

(57 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The double DBSA layer stabilized FF was found to be strongly aggregated, the average size of hydrodynamic units varied between 160 and 270 nm depending on the pH from 3.4 to 7 and the salt concentration up to 0.15 M NaCl. The combined layers of DBSA with LA and MA resulted also in relatively large aggregates (~64 nm at pH ~6.2) and (~33 nm at pH ~6.3) respectively, in accordance with SANS result [49]. Much better stabilization was reached with the LA, MA and OA double layers.…”

supporting

confidence: 86%

“…Small angle neutron scattering (SANS) is one of the most efficient methods of nanostructural investigation of ferrofluids [49]. The differential scattering cross-section per sample volume, the scattering intensity is quite sensitive to structural features of the studied system at the scale of 1-100 nm.…”

mentioning

confidence: 99%

“…FF/H-pentanol), the attractive component of the interaction potential is fully screened. It was shown [49] that the simplest model of the hard-sphere interaction in terms of the Vrij formalism [55] for polydisperse systems could be applied only for samples with ϕ m < 6 %. The results of the fitting procedure indicate a strong interpenetration of the sublayers.…”

mentioning

confidence: 99%

“…For typical SANS curves for aqueous magnetic fluids [49] with a small volume fraction of magnetite in normal water carrier, the contribution of the magnetic scattering can be neglected. The linear behavior of the scattering in the double logarithm scale at small q-values corresponds to the power law S N (q) ~ q -α , where exponent α determines the type of clusters.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Ferrofluids and Magnetorheological Fluids

Vékás

2008

Advances in Science and Technology

View full text Add to dashboard Cite

Abstract. Composition, synthesis and structural properties of ferrofluids and magnetorheological fluids are reviewed and compared. The similarities and main differences between the two types of magnetically controllable fluids are outlined and exemplified in the paper. Chemical synthesis and structural characterization of magnetizable fluids for engineering and biomedical applications are thoroughly discussed.

show abstract

supporting

confidence: 86%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Ferrofluids and Magnetorheological Fluids

Vékás

2008

Advances in Science and Technology

View full text Add to dashboard Cite

show abstract

“…Magnetic fluid is stable colloidal suspensions consisting of single-domain magnetic particles coated with a surfactant and immersed in a carrier fluid. They possess many exclusive physical properties [1][2][3][4][5][6][7][8]. The stability of magnetic fluid depends upon a balance between repulsive and attractive interactions among nanoparticles [9].…”

Section: Introductionmentioning

confidence: 99%

The preparation of Fe-Co double nanoparticle magnetic fluid by pulse laser deposition

Zheng¹,

Li²,

Dong³

2015

Proceedings of the 2015 4th International Conference on Computer, Mechatronics, Control and Electronic Engineering

View full text Add to dashboard Cite

Abstract. The Fe-Co double nanoparticle magnetic fluid prepared by pulse laser deposition was investigated. The results show that peak height of magnetic fluid under 5000 Gs magnetic fluid gradually reduced with increase mass ratio of Fe(CO) 5 and Co 2 (CO) 8 , and peak height is biggest when mass ratio of Fe(CO) 5 and Co 2 (CO) 8 is 5:1. It is can seen that magnetic fluid consist of Fe 3 O 4 and CoFe 2 O 4 particle. The particles uniform covered surfactant in magnetic fluid and favorable distribution with most particle size is approximate 14 nm. The magnetic fluid is super paramagnetic functional materials with magnetic saturation of the 0.025 T. The friction coefficient of magnetic fluid rapidly decreases than paraffin oil with increase of rotational speed and friction time lubricated.

show abstract

Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications

Joseph

Mathew

2014

ChemPlusChem

View full text Add to dashboard Cite

Ferrofluids (FFs) or magnetic nanofluids are incredible smart materials consisting of ultrafine magnetic nanoparticles suspended in a liquid carrier medium, which exhibit both fluidity and magnetic controllability. Studies involving the dynamics and physicochemical properties of these magnetic nanofluids are an interdisciplinary area of research attracting researchers from different fields of science and technology. Herein, a comprehensive Review on the different aspects of FF research is presented. First, the synthesis and stabilization of various types of FFs are discussed followed by their physicochemical features such as polydispersity, magnetic behavior, dipolar interactions, formation of chainlike aggregates, and long‐range ordering. The Review also details the rheological and thermal properties, dynamic instabilities, phase behavior, and particle assemblies in FFs to form complex multipolar geometries, photonic nanostructures, labyrinth structures, thin films, and droplets. Many important characterization techniques for probing FF properties are also briefly discussed, and the numerous innovative applications and future prospects of FFs are outlined.

show abstract

Comparative analysis of the structure of sterically stabilized ferrofluids on polar carriers by small-angle neutron scattering

Cited by 52 publications

References 26 publications

Ferrofluids and Magnetorheological Fluids

Ferrofluids and Magnetorheological Fluids

The preparation of Fe-Co double nanoparticle magnetic fluid by pulse laser deposition

Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications

Contact Info

Product

Resources

About