SHS technology for immobilizing radioactive graphite containing 90sr

Xi Rui Lu, Meng Jun Chen, Si Jin Su, Xiao Li Wang, Yan Lin Wu

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The solubility of SrO and the relationship of phases in the waste forms were analyzed by the help of X-ray diffraction (XRD) instrument. Moreover, the crystal cell parameters were calculated by structural refinement method. The results indicate that the waste forms exist as Al 2O 3, TiC, C, TiO 2 and AlN phase when the contents of SrO range from 0% to 2%, and being as Al 2O 3, TiC, C, TiO 2, AlN and Al 2TiO 5 phase. Unidentified peaks appear in XRD curves ranging from 7.7° to 24.1° (2θ) when the contents of SrO vary from 0% to 2%. Crystal cell parameters a, b and c in Al 2O 3 crystal lattices change from 10 -4° to 10 -3° nm magnitude, the value of V varies from 10 -4~10 -3 nm 3 magnitude, and α, β and γ change from 10 -3° to 10 -1°. The values of a, b, c and V increases with the increasing of SrO. The crystal cell parameters a, b, c of TiC in combustion products vary from 10 -4 to 10 -3 nm magnitude, and the volume of crystal cell changes from 10 -4~10 -3 nm 3 magnitude, and α, β and γ are not found changes.

Original languageEnglish
Pages (from-to)16-20
Number of pages5
JournalWuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology
Volume34
Issue number8
DOIs
Publication statusPublished - 2012 Aug 1
Externally publishedYes

Keywords

  • Radioactive graphite
  • SHS
  • Sr
  • Waste forms

ASJC Scopus subject areas

  • Engineering(all)

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