Rheology
An Anton Paar MCR301 stress controlled rheometer equipped with various cone and plate geometries, and a Couette geometry, with temperature control. In addition, transparent tools (in plate-plate and cone and plate geometries) allow for simultaneous small angle light scattering or microscopy detection.
Contact
Contact person: Andrea Scotti
The Advanced Rheometric Expansion System (ARES) is a true strain-controlled instrument, where the application of strain and the measurement of stress are separated. The sample is subjected to either a dynamic (sinusoidal) or steady shear strain deformation, and then the resultant torque expended by the sample in response to this shear strain is measured. The motor applies shear strain; the transducer measures torque. Strain amplitude and frequency are set by the operator, with the actual sample deformation determined by the measured motor, and transducer, displacement. The instrument is implemented with the transducer 1 K FRT (torque range 0.004 – 20.0 g•cm and normal force range 2.0 – 2000.0 gmf ). The operational temperature range is between -30ºC and 150ºC with temperature stability at thermal equilibrium of ±0.1 ºC, which is controlled with a Peltier system. The actual available geometries are: cone and plate (50 mm, 0.04 rad, 25 mm, 0.04 rad), plate and plate in (50 mm) and couette (16.5 mm bob, 17 mm cup and 32 mm bob and 34 mm cup).
Contact
Contact person: Anna Stradner