In situ TEM investigation of self-ion irradiation of nanoporous gold
- Univ. of Kentucky, Lexington, KY (United States). Dept. of Chemical and Materials Engineering
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies
The ability of nanoporous metals to avoid accumulation of damage under ion beam irradiation has been the focus of several studies in recent years. The width of the interconnected ligaments forming the network structure typically is on the order of tens of nanometers. In such confined volumes with high amounts of surface area, the accumulation of damage (defects such as stacking-fault tetrahedra and dislocation loops) can be mitigated via migration and annihilation of these defects at the free surfaces. Here, in situ characterization of radiation damage in nanoporous gold (np-Au) was performed in the transmission electron microscope. Several samples with varying average ligament size were subjected to gold ion beams having three different energies (10 MeV, 1.7 MeV and 46 keV). The inherent radiation tolerance of np-Au was directly observed in real time, for all ion beam conditions, and the degree of ion-induced damage accumulation in np-Au ligaments is discussed here.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
- Grant/Contract Number:
- AC04-94AL85000; NA0003525
- OSTI ID:
- 1650171
- Report Number(s):
- SAND--2020-8427J; 689937
- Journal Information:
- Journal of Materials Science, Journal Name: Journal of Materials Science Journal Issue: 9 Vol. 54; ISSN 0022-2461
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Amorphous intergranular films mitigate radiation damage in nanocrystalline Cu-Zr
|
journal | March 2020 |
| Amorphous intergranular films mitigate radiation damage in nanocrystalline Cu-Zr | preprint | January 2019 |
Electronic heat transport versus atomic heating in irradiated short metallic nanowires
|
journal | October 2019 |
Similar Records
Microscopic failure behavior of nanoporous Gold
Mechanical Properties and Fracture Behavior of Nanoporous Au