| AVS 66th International Symposium & Exhibition | |
| Actinides and Rare Earths Focus Topic | Tuesday Sessions |
| Session AC+AS+LS-TuA |
| Session: | Forensics, Science and Processing for Nuclear Energy |
| Presenter: | Peter Hosemann, University of California, Berkeley |
| Authors: | P. Hosemann, University of California, Berkeley M. Balooch, University of California, Berkeley S. Stevenson, University of California, Berkeley A. Scott, University of California, Berkeley Y. Yang, Lawrence Berkeley Lab, University of California, Berkeley |
| Correspondent: | Click to Email |
Helium damage in materials is a concern for fission and fusion materials. The development of Helium bubbles in a solid can lead to fundamental property changes ranging from embrittlement to surface blistering. Especially shallow ion beam implantation is of interest to the fusion community since the surface degradation of materials is one of the main materials degradation mechanism. This work features a rapid Helium implantation and screening method based on nanometer precise helium implantation using the helium ion beam microscope (HIM). This tool allows multiple doses in the same grain with subsequent rapid materials examination. We evaluate single and polycrystalline SiC, W, Cu, and Ti in this work and find interesting channelling phenomena which have been fit to modelling results from the literature. Further we evaluate mechanical and microstructural property changes using TEM, nanoindentation, AFM and micropillar compression testing on these alloys.