A multi-axis confocal rheoscope for studying shear flow of structured fluids
Abstract
We present a new design for a confocal rheoscope that enables uniform uniaxial or biaxial shear. The design consists of two precisely positioned parallel plates with a gap that can be adjusted down to 2 ±0.1 μm, allowing for the exploration of confinement effects. By using our shear cell in conjunction with a biaxial force measurement device and a high-speed confocal microscope, we are able to measure the real-time biaxial stress while simultaneously imaging the material three-dimensional structure. We illustrate the importance of the instrument capabilities by discussing the applications of this instrument in current and future research topics in colloidal suspensions. © 2014 AIP Publishing LLC.
Date Published
Journal
Review of Scientific Instruments
Volume
85
Issue
3
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896965172&doi=10.1063%2f1.4868688&partnerID=40&md5=09a7ed14e64fb28fdf80435dc66639ac
DOI
10.1063/1.4868688
Research Area
Group (Lab)
Itai Cohen Group
Funding Source
DMR 1056662