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Welcome to Materials in Extreme Environments
ORNL researchers continue to advance the application of materials in extreme environment. The issue of extremity may be related to either the exposure environment, the fabrication process, or a characterization method. Because extreme conditions typically limit the scale and number of experiments possible, computational modeling and simulation play a major role in understanding the behavior of materials in such environments.
The primary variables which may characterize an extreme environment are:
- temperature (which may vary from one material to another)
- heat flux
- particle fluxes (neutrons, charged particles, photons)
- pressure
- electro-magnetic fields
- chemical environment
- mechanical loading
Advanced microstructural characterization methods are applied to develop a fundamental understanding of material response to extreme conditions. These include the use of neutron and x-ray beams for scattering and diffraction measurements, atom probe field ion microscopy, and high resolution, advanced analytical, and aberration corrected transmission electron microscopy.
The principal technical contacts are Dr. Roger E. Stoller, tel. (865) 576-7886, stollerre@ornl.gov; and Dr. Mike Simonson, (865) 574-4962, simonsonjm@ornl.gov
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