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Rheology Centre

The Rheology Centre manages and maintains instrumentation used to study the rheological behaviour of materials. The centre is managed by Dr Simon Butler, who can train researchers who wish to make regular use the instruments. Dr Butler will also carry out tests for researcher who only have a small number of samples.

The rheometers available within the department include the following instruments:

Instrument

Access

ARES

Controlled strain rheometer

 

This is a “service instrument” and can be used by University researchers after training.

Bohlin

Controlled stress rheometer

 

This is a “service instrument” and can be used by University researchers after training.

Cambridge Shearing System (Linkam CSS)

This is an optical microscope stage that allows a sample to be observed as it is sheared. It consists of two glass plates, the bottom of which is rotated by a stepper motor. Images of the sample are recorded by a video camera attached to the microscope. The temperature of the sample can be controlled by electric heaters positioned on either side of the plates.

 

This is a “service instrument” and can be used by University researchers after training.

Cambridge Multi Pass Rheometer (MPR)

This is a unique dual piston capillary rheometer that is capable of operating a high shear rates and under pressure. It can be used in conjunction with optical birefringence and X-ray scattering (SAXS and WAXS) techniques. See the MPR web pages for further details.

 

The MPR is only available for selected research projects, although “one-off” tests can be run by arrangement with Dr Simon Butler.

Piezo Axial Vibrator (PAV)

This rheometer is used to study the dynamic rheological behaviour of low viscosity fluids. It operates at high oscillatory frequencies and only requires a small sample volume (~100µl). It has been used to study the behaviour of ink jet printing fluids. The Torsion Resonator module of the same instrument allows even higher frequency measurements to be obtained. See the PAV web page for further details.

 

The PAV is available for selected research projects, although “one-off” tests can be run by arrangement with  Dr Simon Butler.

 

Trimaster

These instruments allow the extensional behaviour of liquids at room temperature to be visualised and studied. See the Trimaster web page for further details.

 

The Trimasters are available for selected research projects, although “one-off” tests can be run by arrangement with Dr Simon Butler.

 

Diffuse Wave Spectometer

This instrument uses light scattering from seed particles to determine the dynamic rheological behaviour of the fluid.

 

This instrument is being commissioned and is not currently available for use.

 

Texture Analyser

This is a force arm that can be used to indent or stretch a sample. It can be housed in a temperature controlled cabinet.

 

The Texture Analyser is the property of the Paste, Particle and Polymer Processing group (P4G). Access to this instrument can be arranged by Dr Simon Butler.

 

There is a small charge for the use of these instruments by members of the University. Access to the instruments by researchers from outside the University can be arranged through a consultancy agreement. For more details please contact Dr Simon Butler.