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Title: From microrheology to tribology
Authors: Clasen, Christian
Kavehpour, Pirouz
McKinley, Gareth H. #
Issue Date: Oct-2007
Conference: The Society of Rheology 79th Annual Meeting edition:79 location:Salt Lake City, UT (USA) date:7-11 October 2007
Abstract: Tribology and elastohydrodynamic lubrication have traditionally been considered to be a subject apart from classical bulk rheology and the rapidly developing area of microrheological investigation. The principal reason for this separation is that although fluid properties in each field are key to the observed flow and friction phenomena, the experimental approach and the resulting terminology differ substantially and prohibit a direct translation of the results. In particular the lack of well-defined viscometric kinematics for tribological experiments and the difficulties in achieving sufficiently-precise fixture alignment in regular rheometry on the microscale have inhibited the merging of the results from these fields.
We show in this paper how recent developments in the area of sliding plate microrheometers with controlled gaps on the order of micro- to nanometers, and triborheometers with defined plate-and-plate geometry parameters and normal stress control can bridge this gap between classical tribology and rheology.
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Soft Matter, Rheology and Technology Section
# (joint) last author

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