Abstract
Irradiation-induced dissolution of particles and mixing at heterogeneous interfaces in materials is of importance for ion beam processing and radiation materials sciences. Modeling has predicted dissolution of particles and homogenization at sharp chemical interfaces; imaging and depth profiling techniques have also been used to observe damage and mixing resulting from ion or neutron bombardment. Analytical scanning transmission electron microscopy has been used to directly observe the ion-irradiation induced elemental mixing and dissolution of ∼25-50 nm titanium oxycarbonitrides in a nanostructured ferritic alloy irradiated at 173 K. The magnitude of the mixed zone is consistent with radiation damage theory.
| Original language | English |
|---|---|
| Pages (from-to) | 106-109 |
| Number of pages | 4 |
| Journal | Journal of Nuclear Materials |
| Volume | 418 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Nov 2011 |
Funding
Research supported by the US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. STEM and FIB supported by the Shared Research Equipment (SHaRE) User Facility, which is sponsored at Oak Ridge National Laboratory by the Office of Basic Energy Sciences, US Department of Energy. Ion irradiations performed using the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility, which is sponsored at Pacific Northwest National Laboratory by the Office of Biological and Environmental Research, US Department of Energy. Thanks to Dr. D. Kumar and Dr. R. Unocic, ORNL, for critiquing the manuscript.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | |
| Basic Energy Sciences | |
| Oak Ridge National Laboratory | |
| Division of Materials Sciences and Engineering |