The CAVS sample preparation lab provides a safe and accurate environment for using microstructural characterization equipment to prepare materials samples for use. Specimens are mounted and then polished using a variety of manual and auto-polishing equipment. Other capabilities include etching, water-cooled cutting, and sputter coating.
CAVS researchers collect data on detailed chemical composition to aid in developing advanced alloys. Chemical analysis capabilities include spectrometry, carbon and sulfur analysis, and energy-dispersive X-ray spectroscopy.
LECO 744 Carbon and Sulfur Analyzer determines carbon and sulfur in metals, ores and other inorganic materials. System highlights include:
SPECTROMAX can analyze all of the chemical elements required by the metal industry, including traces of carbon, phosphorus, sulfur and nitrogen. The spectrometer is well-suited for applications like:
The microscopy facilities at CAVS include optical and scanning electron microscopes. We also have access to transmission electron microscopy through our member center, the Institute for Imaging and Analytical Technologies (I2AT). Our FEG and environmental SEMs are equipped with EBSD and EDS capabilities.
The SUPRA 40 is a general purpose high resolution FESEM. Combining excellent imaging properties with analytical capabilities makes this workhorse suitable for a wide range of applications, such as materials development, failure analysis, nanotechnology and analytical applications. The large specimen chamber allows the opportunity to better configure the SUPRA 40 for specific applications without sacrificing efficiency. System characteristics include:
The ZEISS Axiovert 200 optical microscope reaches 2500x magnification, and includes light and dark field and DIC, motorized stage, and an automatic 1000 X-ray inspection system.
Non-destructive test methods such as X-ray computed tomography allow CAVS researchers to evaluate the internal and external structures of material samples. In addition to X-ray CT, we can also do surface profilometry and particle size distribution.
Features of the Taylor-Hobson Talysurf CLI 2000 Gauge System include:
The Nikon XT H 225ST provides a 225 kV microfocus X-ray source with a 3 µm focal spot size.
Abilities of the Horiba Partica Laser Diffraction Particle Size Distribution Analyzer include:
Dynamic Mechanical Analyzer (DMA) Q800 Provides precise control of stress and measures strain using optical encoder. The DMA is ideal for high-stiffness applications, including composites.
Differential Scanning Calorimeter (DSC) Measures melting temperature and heat of fusion, crystallization, glass transition and bound water. Serves as a simple liquid nitrogen cooling accessory for temperatures as low as 170 C and as a cryothermostat cooling device for intermediate temperature ranges: from 80 C to + 200 C under a flow of helium and from -50 C to + 500 C under a flow of argon, nitrogen or dry air.
Q-Fog Offers state-of-the-art corrosion testing technology, precision dispersion and ease of operation. Provides the best possible laboratory simulation of natural corrosion by exposing specimens to a series of different environments in a repetitive cycle, reproducing outdoor cyclic conditions.
Dilatometer UNITHERM MODEL 1161H Measures the expansions and contraction of samples under temperature variation. Consists of a water-cooled purge gas collecting ring and solid copper line, as well as several back-flask screen (100 meshes) flame arrestors, installed at all inlets and exit ports.