High-temperature uniaxial creep apparatus in the Rock Rheology Lab. This is our primary apparatus for investigation of the mechanical properties of rocks. It was designed in collaboration with Physik Instrumente for high resolution mechanical tests, implementing both electromechanical and piezoelectric actuators. Maximum operation temperature is 1500°C with controlled chemical environments. Key behavioral targets are viscoelasticity, anelasticity, seismic attenuation, and viscous creep.
Above is a single crystal of forsterite in preparation for deformation in the uniaxial rig. Pistons are SiC, and platens are alumina. Note the thermocouple on the left side.
The FEI Quanta 650 FEG-SEM in the Department of Earth Sciences, outfitted with EDS, EBSD, and CL.
Instrument geometry in the SEM chamber in preparation for EBSD analysis.
Several workstations are maintained in the Rock Rheology Lab for processing of microstructural data. Here David Wallis sets up an EBSD cross-correlation analysis.
The Rock Rheology Lab hosts several apparatus for simple machining and sample prep. Here Katie Kumamoto and David Wallis use a diamond bit to core an oriented olivine crystal on the milling machine.