Modeling the Time-Dependent Rheological Behavior of Clays Used in Fabrication of Ceramic

In this study, we investigated the thixotropic behavior of two clays used in fabrication of ceramic. The structural kinetic model (SKM) was used to characterize the thixotropic behavior of two different kinds of clays used in fabrication of ceramic. The SKM postulates that the change in the rheological behavior is associated with shear-induced breakdown of the internal structure of the clays. This model for the structure decay with time at constant shear rate assumes nth order kinetics for the decay of the material structure with a rate constant.

Authors:

• L. Hammadi
• N. Boudjenane
• R. Houdjedje
• R. Reffis
• M. Belhadri

Keywords:

• Ceramic
• clays
• structural kinetic model
• thixotropy
• viscosity.

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