4.6 Article

Interface-enabled Defect Reduction in He Ion Irradiated Metallic Multilayers

Journal

JOM
Volume 62, Issue 12, Pages 75-78

Publisher

SPRINGER
DOI: 10.1007/s11837-010-0185-5

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Funding

  1. U S Army Research Office-Materials Science Division [W911NF-09-1 0223]
  2. DOE NEUP Office of Nuclear Energy [DE-AC07 05ID14517, 00088120]
  3. US Department of Energy Office of Science Office of Basic Energy Sciences
  4. Los Alamos National Laboratory

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Metallic multilayers are good model systems to explore the effects of heterophase interfaces in reducing radiation damage in structural materials We summarize recent studies on radiation damage in immiscible face centered cubic/body-centered cubic metallic multilayers in particular Cu/V and Cu/Nb These multilayers have shown unique characteristics compared to bulk metals under irradiation, including several orders of magnitude higher He solid solubility dramatic reduction of bubble density interface confined growth of He bubbles and much lower radiation hardening The mechanisms for interface enhanced radiation tolerance are briefly discussed

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