Gold slows down the growth of helium bubble in iron
arXiv:1102.0355 · doi:10.1016/j.nimb.2011.04.007
Abstract
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.
9 pages, 4 figures, 1 table