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IRRADIATION-INDUCED REDUCTION OF MICROCRACKING IN ZIRCONOLITE.

  • F. W. Clinard
  • , D. S. Tucker
  • , G. F. Hurley
  • , C. D. Kise
  • , J. Rankin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

**2**3**8Pu-substituted zirconolite (CaPuTi//2O//7) was stored near ambient temperature for 231 days, equivalent to an alpha decay dose of 3. 1 multiplied by 10**2**5 alpha /m**3 or 3 multiplied by 10**5 years of storage time for SYNROC ceramic nuclear waste. Periodic indentation testing showed that hardness was decreased by alpha decay-induced conversion to the metamict state, while fracture toughness and resistance to cracking were increased, apparently as a consequence of the formation of a heterogeneous microstructure. These results imply improved stability of this nuclear waste phase as a result of self-irradiation damage.

Original languageEnglish
Title of host publicationMaterials Research Society Symposia Proceedings
EditorsCarol M. Jantzen, John A. Stone, Rodney C. Ewing
PublisherMaterials Research Soc
Pages663-670
Number of pages8
ISBN (Print)093183709X
StatePublished - 1985

Publication series

NameMaterials Research Society Symposia Proceedings
Volume44
ISSN (Print)0272-9172

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