Influence of interface sink strength on the reduction of radiation-induced defect concentrations and fluxes in materials with large interface area per unit volume

Demkowicz, M. J.; Hoagland, R. G.; Uberuaga, B. P.; Misra, A.

doi:10.1103/PhysRevB.84.104102

Title: Influence of interface sink strength on the reduction of radiation-induced defect concentrations and fluxes in materials with large interface area per unit volume

Journal Article · Thu Sep 01 00:00:00 EDT 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.84.104102· OSTI ID:1386440

Demkowicz, M. J.; Hoagland, R. G.; Uberuaga, B. P.; Misra, A.

We use a reaction–diffusion model to demonstrate that buried interfaces in polycrystalline composites simultaneously reduce both the concentrations and the fluxes of radiation-induced defects. The steady-state radiation-induced defect concentrations, however, are highly sensitive to the interface sink strength η. Materials containing a large volume fraction of interfaces may therefore be resistant to multiple forms of radiation-induced degradation, such as swelling and hardening, as well as to embrittlement by solute segregation, provided that the interfaces have suitable η values.

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Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Center for Materials at Irradiation and Mechanical Extremes (CMIME)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

DOE Contract Number:: 2008LANL1026

OSTI ID:: 1386440

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 84, Issue 10; Related Information: CMIME partners with Los Alamos National Laboratory (lead); Carnegie Mellon University; University of Illinois, Urbana Champaign; Massachusetts Institute of Technology; University of Nebraska; ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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36 MATERIALS SCIENCE
nuclear (including radiation effects)
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Title: Influence of interface sink strength on the reduction of radiation-induced defect concentrations and fluxes in materials with large interface area per unit volume

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