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Mostrando ítems 1-10 de 33
Artículo
Correlation between bulk stresses and interparticle contact forces in fine powders
(American Physical Society, 2001)
We present measurements of the tensile strength as a function of the consolidation stress for a set of fine cohesive powders ~xerographic toners! of 12.7 mm particle size and with a range of concentration of submicron fumed ...
Artículo
The settling of fine cohesive powders
(IOP Publishing Ltd., 2001-05-01)
We investigate the settling of an initially fluidized bed of a fine cohesive powder. Experimental results on the sedimentation rate cannot be fitted by theoretical and empirical equations existing in the literature and ...
Artículo
Pull-off force of coated fine powders under small consolidation
(American Physical Society, 2009)
In this paper, a three-dimensional model taking into account the contact deformation and surface area coverage (SAC) of nanoadditives is proposed to predict the force required to separate two contacting particles (the ...
Tesis Doctoral
Artículo
Granular avalanches: Deterministic, correlated and decorrelated dynamics
(IOP Publishing Ltd., 2004-12-15)
A statistical analysis of granular avalanches in a half-filled and slowly rotated drum is presented. For large-sized grains the classical coherent oscillation is reproduced, i.e. we observe a quasi-periodic succession of ...
Patente
Fluidización de polvos finos y ultrafinos asistida por campos eléctricos oscilantes
(Oficina Española de Patentes y Marcas , 2010-06-29)
Fluidización de polvos finos y ultrafinos asistida por campos eléctricos oscilantes.Se describe un método para mejorar la fluidización con gas de polvos finos y ultrafinos. Un procedimiento de fluidización de polvos que ...
Artículo
Fine cohesive powders in rotating drums: Transition from rigid-plastic flow to gas-fluidized regime
(American Physical Society, 2002)
We investigate the dynamics of fine cohesive powders inside rotating drums. We show that these powders may be fluidized due to entrapment of ambient gas, and we determine the onset of fluidization. Experimental measurements ...
Artículo
Aggregation and sedimentation in gas-fluidized beds of cohesive powders
(American Physical Society, 2001)
We present measurements on the settling velocity of gas-fluidized beds of fine cohesive powders. In the solidlike regime ~solid volume fraction f.fc) particles are static, sustained by enduring contacts. The settling is ...
Tesis Doctoral
Propagación del sonido en medios granulares cohesivos
(2017-10-20)
La originalidad de la tesis recae en abordar el estudio experimental y teórico de la propagación del sonido en medios granulares cohesivos en su estado sólido. Diferentes medios granulares cohesivos se sometieron a ...
Artículo
Rheology of magnetofluidized fine powders
(2010)
Usually a bed of solid particles °uidized by a gas is inherently unstable. Gas bubbles are rapidly formed at the onset of °uidization, which hinders the e±ciency of gas-solid contact. In the case of magnetizable particles, ...