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   Articles with "zirconolite" as a keyword



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Combustion synthesis and characterization of Nd-Al codoped zirconolite-rich waste forms using CuO as the oxidant

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recommendations! Published in 2017 at "Ceramics International"

DOI: 10.1016/j.ceramint.2017.02.140

Abstract: Abstract Zirconolite-rich composite material was rapidly obtained from combustion synthesis (CS) using CuO as the oxidant and Ti as the reductant. As the surrogate of trivalent actinides, Nd was incorporated to substitute the Ca site… read more here.

Keywords: zirconolite rich; using cuo; zirconolite; rich waste ... See more keywords

Gd-doping effect on crystallization behaviour and valence state of Ce-bearing zirconolite glass-ceramic

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recommendations! Published in 2020 at "Ceramics International"

DOI: 10.1016/j.ceramint.2020.05.308

Abstract: Abstract Zirconolite-based glass-ceramic is a waste matrix used for incorporating high-level waste (HLW) which is rich in minor actinides. In this study, Ce-bearing zirconolite glass-ceramics were prepared via a traditional two-step thermal treatment method, and… read more here.

Keywords: zirconolite glass; glass; zirconolite; bearing zirconolite ... See more keywords
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Synthesis of Ca1-xCexZrTi2-2xAl2xO7 zirconolite ceramics for plutonium disposition

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recommendations! Published in 2021 at "Journal of Nuclear Materials"

DOI: 10.1016/j.jnucmat.2021.153198

Abstract: Abstract A series of zirconolite ceramics with stoichiometry Ca1-xCexZrTi2-2xAl2xO7 (x = 0 – 0.35), considered as a host phase for the immobilisation of separated plutonium, were prepared from a mixture of oxide precursors by sintering in air… read more here.

Keywords: zirconolite; ca1 xcexzrti2; xcexzrti2 2xal2xo7; synthesis ca1 ... See more keywords
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Phase Evolution in the CaZrTi2O7–Dy2Ti2O7 System: A Potential Host Phase for Minor Actinide Immobilization

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recommendations! Published in 2022 at "Inorganic Chemistry"

DOI: 10.1021/acs.inorgchem.1c03816

Abstract: Zirconolite is considered to be a suitable wasteform material for the immobilization of Pu and other minor actinide species produced through advanced nuclear separations. Here, we present a comprehensive investigation of Dy3+ incorporation within the… read more here.

Keywords: phase; minor actinide; phase evolution; actinide immobilization ... See more keywords
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Self-propagating high-temperature synthesis, phase composition and aqueous durability of Nd–Al bearing zirconolite-rich composites as nuclear waste form

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recommendations! Published in 2018 at "Advances in Applied Ceramics"

DOI: 10.1080/17436753.2017.1405558

Abstract: ABSTRACT In this study, the zirconolite-rich composite was rapidly synthesised from self-propagating high-temperature synthesis plus quick pressing using MoO3 as the oxidant and Ti as the reductant. As a surrogate of trivalent actinides, Nd was… read more here.

Keywords: phase; zirconolite rich; propagating high; self propagating ... See more keywords
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Nöggerathite-(Ce), (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14, a New Zirconolite-Related Mineral from the Eifel Volcanic Region, Germany

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recommendations! Published in 2018 at "Minerals"

DOI: 10.3390/min8100449

Abstract: The new mineral nöggerathite-(Ce) was discovered in a sanidinite volcanic ejectum from the Laach Lake (Laacher See) paleovolcano in the Eifel region, Rhineland-Palatinate, Germany. Associated minerals are sanidine, dark mica, magnetite, baddeleyite, nosean, and a… read more here.

Keywords: mineral; germany; 2fe2 o14; zirconolite ... See more keywords