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In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects

Journal Article · · Materials
DOI:https://doi.org/10.3390/ma10101148· OSTI ID:1406365
Materials designed for nuclear reactors undergo microstructural changes resulting from a combination of several environmental factors, including neutron irradiation damage, gas accumulation and elevated temperatures. Typical ion beam irradiation experiments designed for simulating a neutron irradiation environment involve irradiating the sample with a single ion beam and subsequent characterization of the resulting microstructure, often by transmission electron microscopy (TEM). This method does not allow for examination of microstructural effects due to simultaneous gas accumulation and displacement cascade damage, which occurs in a reactor. Sandia’s in situ ion irradiation TEM (I3TEM) offers the unique ability to observe microstructural changes due to irradiation damage caused by concurrent multi-beam ion irradiation in real time. This allows for time-dependent microstructure analysis. A plethora of additional in situ stages can be coupled with these experiments, e.g., for more accurately simulating defect kinetics at elevated reactor temperatures. As a result, this work outlines experiments showing synergistic effects in Au using in situ ion irradiation with various combinations of helium, deuterium and Au ions, as well as some initial work on materials utilized in tritium-producing burnable absorber rods (TPBARs): zirconium alloys and LiAlO2.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; AC05-76RL01830
OSTI ID:
1406365
Alternate ID(s):
OSTI ID: 1418331
OSTI ID: 1422341
Report Number(s):
PNNL-SA--131591; SAND--2017-11074J; PII: ma10101148
Journal Information:
Materials, Journal Name: Materials Journal Issue: 10 Vol. 10; ISSN 1996-1944; ISSN MATEG9
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Application of In Situ TEM to Investigate Irradiation Creep in Nanocrystalline Zirconium journal August 2019
A study of irradiation effects in TiO 2 using molecular dynamics simulation and complementary in situ transmission electron microscopy journal September 2018

Figures / Tables (13)