van Heugten, W. F. W. M.;
van den Berg, F.;
Caspers, L. M.;
van Veen, A.;
de Hosson, J. Th. M.
The influence of interatomic potentials on the interaction of He with a \documentclass{article}\pagestyle{empty}\begin{document}$ \frac{1}{2}\left\langle {111} \right\rangle $\end{document} {110} edge dislocation in molybdenum
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Medientyp:
E-Artikel
Titel:
The influence of interatomic potentials on the interaction of He with a \documentclass{article}\pagestyle{empty}\begin{document}$ \frac{1}{2}\left\langle {111} \right\rangle $\end{document} {110} edge dislocation in molybdenum
Beteiligte:
van Heugten, W. F. W. M.;
van den Berg, F.;
Caspers, L. M.;
van Veen, A.;
de Hosson, J. Th. M.
Beschreibung:
<jats:title>Abstract</jats:title><jats:p>The binding of clusters of up to four helium atoms to a <jats:styled-content>\documentclass{article}\pagestyle{empty}\begin{document}$ \frac{1}{2}\left\langle {111} \right\rangle $\end{document}<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/tex2gif-ueqn-2.gif" xlink:title="equation image" /></jats:styled-content> {110} edge dislocation in Mo is calculated, using two sets of interaction potentials. The first set contains MoMo, MoHe, and HeHe potentials derived by several authors between 1970 and 1974. The second set contains potentials recently fitted to phonon curves and helium desorption experiments. Both sets give binding energies between He and the dislocation of respectively 1.6 and 1.8 eV and binding energies between dislocation bound helium of 0.7/0.9 and ;0.2/+0.1 eV, respectively. The migration energy of helium along the dislocation is found to be equal to that in the bulk.</jats:p>