| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1682514 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2011 | 4 Pages |
Abstract
Although the mechanism of shape-elongation of nanoparticles (NPs) by swift-heavy-ion-irradiation is still under debate, melting and solidification of NPs for pico-second region by thermal spikes has been proposed as one of the processes involved. Elongation of high melting point (MP) NPs (vanadium, TMPbulk=1890 °C) and of low MP NPs (zinc, TMPbulk=420 °C) were compared under irradiation with 200 MeV Xe14+ ions. Irrespective of the large difference in their MPs, both the V and Zn NPs showed comparable elongation. The insensitivity of elongation to the MP can be explained by the asynchronicity of melting of the silica and the NPs.
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Authors
H. Amekura, N. Ishikawa, N. Okubo, Y. Nakayama, K. Mitsuishi,