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Details of Grant 

EPSRC Reference: GR/J44025/01
Title: KINETICS AND STRUCTURES IN SHEARED AGGREGATING SUSPENSIONS - A LIGHT SCATTERING ,X-RAY AND RHEOLOGICAL STUDY
Principal Investigator: Herrington, Dr T
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Chemistry
Organisation: University of Reading
Scheme: Standard Research (Pre-FEC)
Starts: 01 November 1993 Ends: 30 April 1997 Value (£): 177,957
EPSRC Research Topic Classifications:
Complex fluids & soft solids
EPSRC Industrial Sector Classifications:
Manufacturing
Related Grants:
Panel History:  
Summary on Grant Application Form
It is known that the structures of aggregates in colloidal dispersons are very sensitive to the presence of a shear stress in the fluid. It is proposed to study aggregate and gel formation in increasingly concentrated dispersions of industrially important clays, as well as model systems of polystyrene microspheres. The structural effects are of significance with respect to the rate at which aggregates or a gel are formed, as well as being important for the commercial use of the clays. Three complementary techniques, namely, static and dynamic light scattering, low-angle and Bragg X-ray diffraction, and stress/strain rheometry, will be used to determine aggregate or gel structure, particle-particle and cluster-cluster interactions, and rates of aggregate formation and break-up (ie the increase and decrease in overall order), all whilst under the influence of applied shear fields.
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Organisation Website: http://www.rdg.ac.uk