Gold slows down the growth of helium bubble in iron

Details Gold slows down the growth of helium bubble in iron Gold slows down the growth of helium bubble in iron

2011-02-02

arxiv.org/abs/1102.0355v1

Physics

Condensed Matter

Materials Science

9 pages, 4 figures, 1 table

Scientific paper

We predict by first-principles calculations that Au have strong affinity to
He in bcc Fe. The Au-Au bonding in the segregated Au layer at the He bubble
surface is stronger than Fe-Fe and Au-Fe interactions; therefore this layer
becomes an effective barrier to further He and slows down the bubble growth.

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