Instrumentation

Our service laboratory is a Zeiss microscopy facility with two primary instruments available to researchers.

 

Zeiss Xradia 510 Versa 3D X-ray microscope

 

Zeiss Xradia 510 Versa 3D X-ray microscope

Our Zeiss Xradia 510 Versa 3D X-ray microscope (XRM or µCT) is the only available µCT on MU’s Columbia campus. The Xradia 510 Versa µCT is the industry’s premier in-situ solution for non-destructive 3D imaging, allowing for unique characterization of the microstructure of materials for a diverse array of applications and sample types. The Xradia 510 Versa can achieve between 0.7–55 μm true spatial resolution with minimum achievable voxel size below 70 nm. This µCT has increased versatility for soft or low-Z materials with advanced absorption contrast along with innovative phase contrast to overcome the limitations of traditional computed tomography.

 

Zeiss Sigma 500 VP scanning electron microscope (SEM)

 

Zeiss Sigma 500 VP scanning electron microscope

Our customized Zeiss Sigma 500 VP scanning electron microscope (SEM) is built on a large chamber platform and equipped with the Gemini field-emission column with extended voltage available, yielding excellent count rates for spectrometry and spatial resolution to ~0.7 nm. The chamber is a dry variable pressure system, using a nitrogen gas atmosphere for low-vacuum analyses, and is equipped with a cascade current secondary electron detector for outstanding low-vacuum imaging quality.

We additionally have a standard Everhart-Thornley detector, a high-definition 5-segment backscatter detector, and a dual in-lens detector, for a full range of imaging capabilities.

For compositional analyses, our Sigma houses dual, co-planar (diametrically opposite), Bruker energy dispersive X-ray spectrometers and an integrated Bruker microspot X-ray fluorescence unit (µXRF).

Finally, our system is also equipped with the ATLAS control module and a 5-axis Cartesian stage to allow for large sample automated imaging.

For additional electron microscopy services available on MU’s Columbia campus, please also visit the Electron Microscopy Core website.

 

Other services

ORS Dragonfly software logo

 

Available at additional cost, we can provide other sample preparation services, including:

  • Metal deposition sputter coating with our Cressington 108auto/SE sputter coater equipped with a MTM-10 thickness monitor.

  • Sample cutting, polishing and epoxy embedding with our fully equipped preparation laboratory.

  • Availability of Dell Precision workstations equipped with ORS Dragonfly software for 3D rendering and segmentation.

 

Acknowledgment of grant support

National Science Foundation logo

 

The MizzoµX facility was made possible by grant support from the National Science Foundation Division of Earth Sciences Instrumentation and Facilities (grant# 1636643 to Dr. James D. Schiffbauer), the MU Division of Research, Innovation & Impact, the MU System Research Board, The College of Arts and Science and several MU units/departments.