Applied Rheology: Publications

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Peter Fischer, Martin Kroger
Patents Review (October 2004)

Appl. Rheol. 14:5 (2004) 272-276

Cite this publication as follows:
Fischer P, Kroger M: Patents Review (October 2004), Appl. Rheol. 14 (2004) 272.

Hans Henning Winter
Amherst Rheology Course 2004: Merging experiment with theory in rheology

Appl. Rheol. 14:5 (2004) 268-270

Cite this publication as follows:
Winter HH: Amherst Rheology Course 2004: Merging experiment with theory in rheology, Appl. Rheol. 14 (2004) 268.

Elmars Blums, Antonio M. Figueiredo Neto
10th International Conference on Magnetic Fluids (ICMF 10)

Appl. Rheol. 14:5 (2004) 267

Cite this publication as follows:
Blums E, Neto AMF: 10th International Conference on Magnetic Fluids (ICMF 10), Appl. Rheol. 14 (2004) 267.

Evan Mitsoulis
Hellenic Society of rheology: HSR 2004 Athens, Greece

Appl. Rheol. 14:5 (2004) 266

Cite this publication as follows:
Mitsoulis E: Hellenic Society of rheology: HSR 2004 Athens, Greece , Appl. Rheol. 14 (2004) 266.

Nicolas Roussel, Christophe Lanos
Particle Fluid Separation in Shear Flow of Dense Suspensions: Experimental Measurements on Squeezed Clay Pastes

Appl. Rheol. 14:5 (2004) 256-265

Particle fluid separation is studied in the case of slow squeezing flow of dense clay suspensions. The fluid pressure gradient generated by the test induces heterogeneity in the sample. Experimental water content measurements at different time points through the test allow the quantification of this separation phenomenon. The problem equations are written in the case of purely extensional flow. Based on Terzaghi principle, Darcy.s law and a Cam Clay type constitutive equation, the influence of the permeability function on the predicted void ratio evolution is studied. It is then shown that a certain water amount is strongly linked to the grains and cannot be extracted from the sample using simple compression. This critical water amount is then taken in account in the permeability function in order to predict the compression load through the test.

Cite this publication as follows:
Roussel N, Lanos C: Particle Fluid Separation in Shear Flow of Dense Suspensions: Experimental Measurements on Squeezed Clay Pastes, Appl. Rheol. 14 (2004) 256.

Lourdes Zumalacarregui, Miguel Vazquez, Tania Estevez, Ana Aguilera, Eugenio Hardy
Rheological Studies of Interferon Creams

Appl. Rheol. 14:5 (2004) 251-255

The determination of flow curves and the apparent viscosity curves at 28°C of creams containing human leukocyte alpha interferon as active principle is presented in this paper. These creams are used for the treatment of papiloma virus and herpes simplex. It is demonstrated that their behaviour corresponds to a thixotropic fluid. The Herschel-Bulkley model parameters are presented and discussed as an indicator of the grade of thixotropy. Apparent viscosity plotted as a function of shear rate and storage time allows defining the time period in which the samples recover their initial structure. Additionally it was concluded that for determining the quality of the product, the acceptance limit of the viscosity should be specified for a given shear rate.

Cite this publication as follows:
Zumalacarregui L, Vazquez M, Estevez T, Aguilera A, Hardy E: Rheological Studies of Interferon Creams, Appl. Rheol. 14 (2004) 251.

A. Arzate, G. Ascanio, P.J. Carreau, P.A. Tanguy
Extensional Viscosity of Coating Colors and its Relation With Jet Coating Performance

Appl. Rheol. 14:5 (2004) 240-250

An orifice flowmeter was used to measure the extensional viscosity of several non-pigmented fluids and paper coating colors containing calcium carbonate as pigment in the context of a jet coating application. The orifice flowmeter was first calibrated in terms of a dimensionless Euler number versus Reynolds number curve with Newtonian fluids. The calibration curve was then used to determine the apparent extensional viscosity of coating colors. In the strain rate range investigated, all the fluids were found to exhibit strain-thinning and the Trouton ratio of the coating colors was in the range 5 to 20. Jet coating tests were also carried out in order to evaluate the effect of the extensional viscosity on the jet performance. The extensional viscosity was shown to be a key parameter determining the configuration of the downstream meniscus in the web contact region.

Cite this publication as follows:
Arzate A, Ascanio G, Carreau PJ, Tanguy PA: Extensional Viscosity of Coating Colors and its Relation With Jet Coating Performance, Appl. Rheol. 14 (2004) 240.

Walter Richtering
Physical Properties of Polymers (J. Mark, K. Ngai, W. Graessley, L. Mandelkern, E. Samulski, J. Koenig, G. Wignall)

Appl. Rheol. 14:5 (2004) 239

Cite this publication as follows:
Richtering W: Physical Properties of Polymers (J. Mark, K. Ngai, W. Graessley, L. Mandelkern, E. Samulski, J. Koenig, G. Wignall), Appl. Rheol. 14 (2004) 239.


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