| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1687013 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2009 | 4 Pages |
Abstract
By means of molecular dynamics simulations using bond-order potential (BOP), we have investigated the interactions between carbon (C) atoms and bcc tungsten (W). At finite temperature (TÂ =Â 300Â K) with incident energy of C atoms ranging from 0.5 to 100Â eV at normal incidence, the projected range distribution as a function of incident energy and the average depth have been depicted. The properties of vacancy, vacancy migration, interstitial and substitutional C atoms in W have been determined. The most stable configuration for an interstitial C atom in W is in octahedral position and the lattice distortion around the C atom in octahedral interstitial configuration occurs along ã1Â 0Â 0ã and ã1Â 1Â 0ã directions. The mutual interaction between a vacancy and near interstitial C atom is also studied.
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Authors
Zhongshi Yang, Q. Xu, Junqi Liao, Q. Li, G.-H. Lu, G.-N. Luo,