Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Accelerated chemical aging of crystalline nuclear waste forms: A density functional theory study of 109 Cdx 109 Ag1-xS

    Access Status
    Fulltext not available
    Authors
    Dorado, B.
    Uberuaga, B.
    Marks, Nigel
    Stanek, C.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Dorado, B. and Uberuaga, B. and Marks, N. and Stanek, C. 2014. Accelerated chemical aging of crystalline nuclear waste forms: A density functional theory study of 109 Cdx 109 Ag1-xS. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 352: pp. 130-134.
    Source Title
    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    DOI
    10.1016/j.nimb.2014.12.033
    ISSN
    0168-583X
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/41167
    Collection
    • Curtin Research Publications
    Abstract

    Recently, a combined experimental-theoretical approach to assess the effect of daughter product formation on the stability of crystalline compounds comprised of radioisotopes has been developed. This methodology was motivated by the potential impact on crystalline nuclear waste form stability of a significant fraction of the constituent atoms undergoing transmutation. What is particularly novel about this approach is the experimental use of very short-lived isotopes to accelerate the chemical evolution that occurs during decay. In this paper, we present results of density functional theory (DFT) calculations that have been performed in support of corresponding experiments on the 109 Cdx 109 Ag1-xS material system. 109Cd has been selected in order to simulate the decay of important "short-lived" fission products 137Cs or 90Sr (which decay via ß- to 137Ba and 90Zr respectively with ˜30-year half-lives). By comparison, 109Cd decays by electron capture with a half-life of 109days to 109Ag. DFT results predict the formation of heretofore unobserved CdxAg1-xS structures, which support corresponding experiments and ultimately may have implications for waste form stability.

    Related items

    Showing items related by title, author, creator and subject.

    • Temperature Dependence of Chemical and Microbiological Chloramine Decay in Bulk Waters of Distribution System
      Sathasivan, Arumugam; Chiang, Jacob; Nolan, P. (2009)
      Chloramine decays in distribution system due to wall and bulk water reactions. In bulk water, the decay could either be due to chemical or microbiological reactions. Without such distinction it is not possible to model ...
    • Development of an analytical solution for the parallel second order reaction scheme for chlorine decay modelling
      Jabari Kohpaei, Ahmad (2010)
      Chlorine is broadly used for water disinfection at the final stage of water treatment because of its high performance to inactivate pathogenic microorganisms, its lower cost compared to other well-known disinfectants and ...
    • The fate of human enteric pathogens following the land application of biosolids in agriculture
      Schwarz, Karen Rosemary (2012)
      A research project was undertaken to study the effect of biosolids on the decay times of enteric pathogens in the soil. This is the most comprehensive study in Australia where the persistence of enteric microorganisms in ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.