Synthesis of Ce-doped zircon by a sol-gel process

S. V. Ushakov, B. E. Burakov, V. M. Garbuzov, E. B. Anderson, E. E. Strykanova, M. M. Yagovkina, K. B. Helean, Y. X. Guo, R. C. Ewing, W. Lutze

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations

Abstract

Zircon, ZrSiO4, is a prospective durable host material for the immobilization of excess weapons plutonium. Using cerium as a chemical analogue for plutonium, the experiments on the synthesis of Ce-doped zircon were conducted by sintering of sol-gel precursors in air and vacuum. The results showed that cerium substantially promotes zircon formation from sol-gel precursors and sintering in air is preferable for cerium incorporation in zircon structure. Based on measured lattice constants, solid solution compositions (Zr0.96Ce0.04)SiO4 and (Zr0.98Ce0.02)SiO4 were formed in samples sintered in air at 1400 °C and 1600 °C, respectively. The solubility limits of cerium and actinides in zircon and mechanism of zircon formation are discussed.

Original languageEnglish (US)
Pages (from-to)[d]281-288
JournalMaterials Research Society Symposium - Proceedings
Volume506
DOIs
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 Symposiumon Scientific Basis for Nuclear Waste Management XXI - Davos, Switz
Duration: Sep 28 1997Oct 3 1997

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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