Rheometry/Viscometry

Rheology is used to describe and assess the deformation and flow behavior of materials. Shear rheometry is a convenient tool to assess a wide range of rheological properties relevant for both fundamental understanding and technical applications. Various measurement systems (plate-plate, plate-cone, cup-bob, etc.) are available depending on the requirements and characteristics of the sample. The most common measurement methods are steady shear (to determine e.g. shear stress, dynamic viscosity, normal force) and oscillating mode (assessing complex viscosity, dynamic moduli, relaxation time spectra). Optical accessories such as small angle laser scattering or polarized light imaging enable analyses of structural properties under shear deformation.