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Hollandite-rich ceramic melts for the immobilisation of Cs

Conference Paper


Abstract


  • Ceramic wasteforms designed to be processed by melting in air has been developed to immobilise Cs-rich wastes. Detailed characterisation electron microscopy is presented on versions of these melted materials which are rich in Cr-, Ni-, Zn or Co- substituted titanate hollandites and which have PCT-B normalised Cs leachate concentrations of < 0.2 g/L. To assist in understanding the general crystal chemistry of titanate hollandites, this study also investigates the solubility limits of Cs in single-phase hollandite Ba xCsy(M3+)2x+yTi 8-2x-yO16 where M = Cr and BaxCs y(M2+)x+y/2Ti8-x-y/2O16 formulations where M = Zn, Co or Ni.

Publication Date


  • 2004

Citation


  • Carter, M. L., Vance, E. R., & Li, H. (2004). Hollandite-rich ceramic melts for the immobilisation of Cs. In Materials Research Society Symposium Proceedings Vol. 807 (pp. 249-254).

Scopus Eid


  • 2-s2.0-12844278748

Web Of Science Accession Number


Start Page


  • 249

End Page


  • 254

Volume


  • 807

Abstract


  • Ceramic wasteforms designed to be processed by melting in air has been developed to immobilise Cs-rich wastes. Detailed characterisation electron microscopy is presented on versions of these melted materials which are rich in Cr-, Ni-, Zn or Co- substituted titanate hollandites and which have PCT-B normalised Cs leachate concentrations of < 0.2 g/L. To assist in understanding the general crystal chemistry of titanate hollandites, this study also investigates the solubility limits of Cs in single-phase hollandite Ba xCsy(M3+)2x+yTi 8-2x-yO16 where M = Cr and BaxCs y(M2+)x+y/2Ti8-x-y/2O16 formulations where M = Zn, Co or Ni.

Publication Date


  • 2004

Citation


  • Carter, M. L., Vance, E. R., & Li, H. (2004). Hollandite-rich ceramic melts for the immobilisation of Cs. In Materials Research Society Symposium Proceedings Vol. 807 (pp. 249-254).

Scopus Eid


  • 2-s2.0-12844278748

Web Of Science Accession Number


Start Page


  • 249

End Page


  • 254

Volume


  • 807