| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8039275 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2018 | 4 Pages |
Abstract
Polished polycrystalline Plansee tungsten (W) sample with purity 99.99â¯wt% and 0.75â¯mm thickness has been exposed to intense argon (Ar) ion beam with average energy of 2â¯keV and etched through in the centre. As a result, castle-like structures with strong asymmetry and with the height of⯠>200â¯Âµm have been formed. Structures can be observed by naked eyes and with scanning-electron microscopy (SEM). It has been revealed, that the structures have been formed not immediately, but at the later stages of irradiation. Primary factors favouring the formation for the structures are relaxation of the surface stresses and activated surface mobility of atoms.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
O. Girka, O. Bizyukov, Y. Balkova, M. Myroshnyk, I. Bizyukov, S. Bogatyrenko,