Letter to the Editor: Wall slip in dispersion rheometry

Abstract

Whereas our understanding of the role and mechanism of wall slip has improved substantially over the last decade or two, it is still common to see papers on disperse systems appear wherein scant details of the measurement methods are given and wherein no mention of the possibility (probability?) of slip is made. It is argued that there is a need to raise awareness. It takes experience, judgement and skill to make meaningful measurements on disperse systems and it is suspected that the nature of the experimental challenge is under-estimated grossly by too many workers even now.

10 pages, 2 figures

References in corpus (1)

• Shear zones and wall slip in the capillary flow of concentrated colloidal suspensions

Cited by in corpus (16)

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• The Physics of the Colloidal Glass Transition
• Shear Banding of Complex Fluids
• Slip at Fluid-Solid Interface
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• Timescales in creep and yielding of attractive gels
• Wall slip and flow of concentrated hard-sphere colloidal suspensions
• Ultrafast ultrasonic imaging coupled to rheometry: principle and illustration
• Simultaneous rheo-electric measurements of strongly conductive complex fluids
• New insights on carbon black suspension rheology -- anisotropic thixotropy and anti-thixotropy
• A model colloidal gel for coordinated measurements of force, structure, and rheology
• Metastability at the Yield-Stress Transition in Soft Glasses
• Emergence of transient reverse fingers during radial displacement of a shear-thickening fluid
• Interplay between wall slip and shear banding in a thixotropic yield stress fluid
• Effects of non-parallelism on standard and magnetorheological measurements
• Unsteady laminar pipe flow of a Carbopol gel. Part I: experiment