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Characterization of Irradiation and Environmental Effects in Metallic and Ceramic Materials


EMSL Project ID
50074

Abstract

This proposed work aims to provide samples from archive materials and highly radioactive materials to document the changes in metals and ceramics that have been subjected to neutron and/or ion irradiation, potentially under oxidizing environments. These samples will allow various characterization techniques to be used on small samples prepared from radioactive materials using FIB milling, which produces samples of such small volume that they can be free released as non-radioactive. This ability to produce such samples is critical to exploring the changes in microchemistry and microstructure at the atomic scale without interference from the radioactivity of the samples. The use of the atom probe and ETEM are required to explore atomistic changes that cannot be detected with other ex-situ instrumentation.

Project Details

Start Date
2017-10-11
End Date
2018-09-30
Status
Closed

Team

Principal Investigator

Danny Edwards
Institution
Pacific Northwest National Laboratory

Team Members

Jing Wang
Institution
Pacific Northwest National Laboratory

Karen Kruska
Institution
Pacific Northwest National Laboratory

Alan Schemer-Kohrn
Institution
Pacific Northwest National Laboratory

Related Publications

Zhu Y., C. Ophus, M.B. Toloczko, and D.J. Edwards. 2018. "Towards bend-contour-free dislocation imaging via diffraction contrast STEM." Ultramicroscopy 193. PNNL-SA-131462. doi:10.1016/j.ultramic.2018.06.001