Microstructure and rheology of ferrofluids

Pop, Loredana Mirela; Odenbach, Stefan; Wiedenmann, A.; Matoussevitch, Nina; Bönnemann, Helmut

doi:10.1016/j.jmmm.2004.11.086

Cited by 60 publications

(38 citation statements)

References 8 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although this can be considered as a high shear rate for which no change of viscosity with the magnetic field appears [20], the shear thinning effects do not appears. With the rotational test [13,17], the destruction of the chain due to the level of fluid shearing is associated with the shear rate amplitude.…”

Section: Resultsmentioning

confidence: 99%

Investigation into ferrofluid magnetoviscous effects under an oscillating shear flow

Pinho

Brouard

Génevaux

et al. 2011

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

a b s t r a c tThe use of ferrofluid seals in mechanical systems can lead to viscous damping that affects their dynamic behavior. This paper describes an investigation into local viscous properties in the case of an axial harmonic force. The influence of magnetic field level, shear stress amplitude and frequency are studied. Even for ferrofluid particles in a highly saturated magnetic field, it is shown that viscosity increases with magnetic intensity, decreases with the frequency of harmonic excitation and is not sensitive to shear rate amplitude. Viscosity is lower for oscillatory flows than for steady flows.

show abstract

Section: Resultsmentioning

confidence: 99%

Investigation into ferrofluid magnetoviscous effects under an oscillating shear flow

Pinho

Brouard

Génevaux

et al. 2011

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

show abstract

“…A gradient magnetic field causes large particles to diffuse to the strong field region while smaller particles have a weaker effect. Rheometer measurements of viscosity show that large particles and agglomerates have a strong magnetic field dependence on viscosity increase which depends on shear rate, while the smaller particle fluid has only a small viscosity increase and smaller shear-rate dependence [114,115].…”

Section: Magnetoviscositymentioning

confidence: 99%

Magnetic fluid rheology and flows

Rinaldi

Chaves

Elborai

et al. 2005

Current Opinion in Colloid & Interface Science

184

View full text Add to dashboard Cite

“…The formation of anisotropic structures in the presence of a magnetic field and a shear flow have been observed in SANS experiments on ferrofluids [6]. Fig.…”

Section: Article In Pressmentioning

confidence: 78%

“…Ref. [5] and references therein), the microscopic structure of ferrofluids under shear flow has, for the first time, been measured only recently [6]. These small angle neutron scattering (SANS) experiments show the existence of anisotropic and shear rate dependent structures.…”

Section: Introductionmentioning

confidence: 99%