Dr. Roger T. Bonnecaze, professor of chemical engineering at The University of Texas at Austin, won the best paper award from the Journal of Rheology.
Bonnecaze, who holds the T. Brockett Hudson Professorship, won the award at the annual Society of Rheology meeting in Canada for the paper, "Slip and flow in pastes of soft particles: Direct observation and rheology,” which he co-authored with Drs. Michel Cloitre and Steve Meeker at the ESPCI, a university in France.
Rheology is the study of deformation and flow of matter and has applications in engineering, geophysics and physiology. Members of the Society of Rheology come from academic, industrial and government backgrounds and study many materials, including polymers, petroleum products and even cosmetics.
Bonnecaze's paper documented a study about pastes of soft, deformable particles that occur in a variety of applications, such as coatings of nanometer-sized polymers, the flow of micron-sized emulsions, and the extrusion of millimeter-sized sands in special cements. The research showed a universal behavior in these varied materials. Bonnecaze, who also serves as chair of the Department of Chemical Engineering, and his co-authors developed methods to characterize and predict the behavior of these materials.
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