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Why monotonous and non-monotonous steady-flow curves can be obtained with the same non-Newtonian fluid? A single explanation

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Abstract

We show that a pronounced variation of the apparent viscosity with shear joined to the control shear mode of a rheometer can justify why monotonous and non-monotonous steady-flow curves can be obtained testing the same non-Newtonian fluid.

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Acknowledgements

NMPF expresses his gratitude for the grant received from Universidad de las Fuerzas Armadas-ESPE (Sangolqui, Ecuador). Thanks are due to Mr. Antonio Fernández (Financiera y Minera S.A., Spain) for kindly supplying the cement sample and Evonik Industries AG (Germany) for kindly supplying the Aerosil®R816. We appreciate valuable comments by one of the reviewers.

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Authors and Affiliations

  1. Departamento de Física Aplicada II, Universidad de Málaga, Málaga, Spain

    Francisco José Rubio-Hernández & Nicolás Marcelo Páez-Flor

  2. DECEM, Universidad de las Fuerzas Armadas-ESPE, Sangolquí, Ecuador

    Nicolás Marcelo Páez-Flor

  3. Departamento de Ingeniería Mecánica, Térmica y de Fluidos, Universidad de Málaga, Málaga, Spain

    José Francisco Velázquez-Navarro

Authors
  1. Francisco José Rubio-Hernández
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  2. Nicolás Marcelo Páez-Flor
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  3. José Francisco Velázquez-Navarro
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Correspondence to Francisco José Rubio-Hernández.

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Rubio-Hernández, F.J., Páez-Flor, N.M. & Velázquez-Navarro, J.F. Why monotonous and non-monotonous steady-flow curves can be obtained with the same non-Newtonian fluid? A single explanation. Rheol Acta 57, 389–396 (2018). https://doi.org/10.1007/s00397-018-1084-x

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  • DOI: https://doi.org/10.1007/s00397-018-1084-x

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