Accommodation of uranium into the garnet structure

Sergey V. Yudintsev, Marya I. Lapina, Alexander G. Ptashkin, Tatiana S. Ioudintseva, Satoshi Utsunomiya, Lumin M. Wang, Rodney C. Ewing

Research output: Contribution to journalArticle

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Abstract

One promising host for actinide wastes is garnet-type phases of general formula AVIII3BVI2[XO4]3. To determine the isomorphic capacity of garnet for uranium, CaO - Fe2O3 - Al2O3 - SiO2 - ZrO2 - Gd2O3 - UO2 system was studied. Experiments were performed in air medium at 1400 - 1500°C and 1 atm. The garnets have high capacity for Gd and Zr, while incorporation of U was found to be greatly dependent on the phase composition. Uranium content decreased from 18 wt.% in Ca-Zr-Fe garnet to 0.6 wt.% in Si-doped phases. Heavy ion irradiation (1.0 MeV Kr++) experiments were carried out for a garnet with maximal U content, (Ca2,7U0,3) VIII(Zr1,7Fe0,3) VI(Al1,1Fe1,9)IV O12. Amorphization dose of the phase was equal to 1.63×1014 ions/cm2 that is close to the other actinide hosts, such as pyrochlore Gd2Ti2O7.

Original languageEnglish
Pages (from-to)477-480
Number of pages4
JournalMaterials Research Society Symposium - Proceedings
Volume713
Publication statusPublished - Jan 1 2002

Fingerprint

Uranium
accommodation
Garnets
garnets
uranium
Actinoid Series Elements
Actinides
Heavy Ions
Amorphization
Ion bombardment
ion irradiation
Heavy ions
Phase composition
heavy ions
Experiments
Ions
dosage
air
Air
ions

All Science Journal Classification (ASJC) codes

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

Cite this

Yudintsev, S. V., Lapina, M. I., Ptashkin, A. G., Ioudintseva, T. S., Utsunomiya, S., Wang, L. M., & Ewing, R. C. (2002). Accommodation of uranium into the garnet structure. Materials Research Society Symposium - Proceedings, 713, 477-480.

Accommodation of uranium into the garnet structure. / Yudintsev, Sergey V.; Lapina, Marya I.; Ptashkin, Alexander G.; Ioudintseva, Tatiana S.; Utsunomiya, Satoshi; Wang, Lumin M.; Ewing, Rodney C.

In: Materials Research Society Symposium - Proceedings, Vol. 713, 01.01.2002, p. 477-480.

Research output: Contribution to journalArticle

Yudintsev, SV, Lapina, MI, Ptashkin, AG, Ioudintseva, TS, Utsunomiya, S, Wang, LM & Ewing, RC 2002, 'Accommodation of uranium into the garnet structure', Materials Research Society Symposium - Proceedings, vol. 713, pp. 477-480.
Yudintsev SV, Lapina MI, Ptashkin AG, Ioudintseva TS, Utsunomiya S, Wang LM et al. Accommodation of uranium into the garnet structure. Materials Research Society Symposium - Proceedings. 2002 Jan 1;713:477-480.
Yudintsev, Sergey V. ; Lapina, Marya I. ; Ptashkin, Alexander G. ; Ioudintseva, Tatiana S. ; Utsunomiya, Satoshi ; Wang, Lumin M. ; Ewing, Rodney C. / Accommodation of uranium into the garnet structure. In: Materials Research Society Symposium - Proceedings. 2002 ; Vol. 713. pp. 477-480.
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