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Article Dans Une Revue Review of Scientific Instruments Année : 2016

A stress-controlled shear cell for small-angle light scattering and microscopy

Stefano Aime
  • Fonction : Auteur
  • PersonId : 1003179
Laurence Ramos
Jean-Marc Fromental
  • Fonction : Auteur
  • PersonId : 998366
Guillaume Prevot
  • Fonction : Auteur
  • PersonId : 1003180
Remi Jelinek
  • Fonction : Auteur
  • PersonId : 977490

Résumé

We develop and thoroughly test a stress-controlled, parallel plates shear cell that can be coupled to an optical microscope or a small angle light scattering setup, for simultaneous investigation of the rheological properties and the microscopic structure of soft materials under an imposed shear stress. In order to minimize friction, the cell is based on an air bearing linear stage, the stress is applied through a contactless magnetic actuator, and the strain is measured through optical sensors. We discuss the contributions of inertia and of the small residual friction to the measured signal and demonstrate the performance of our device in both oscillating and step stress experiments on a variety of viscoelastic materials.
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Dates et versions

hal-01292652 , version 1 (23-03-2016)

Identifiants

Citer

Stefano Aime, Laurence Ramos, Jean-Marc Fromental, Guillaume Prevot, Remi Jelinek, et al.. A stress-controlled shear cell for small-angle light scattering and microscopy. Review of Scientific Instruments, 2016, 87 (12), pp.123907. ⟨10.1063/1.4972253⟩. ⟨hal-01292652⟩
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