CaTh(PO4)2 cheralite as a candidate ceramic nuclear waste form: Spark plasma sintering and physicochemical characterisation

Popa, Karin; Cologna, Marco; Martel, Laura; Staicu, D.; Cambriani, Andrea; Ernstberger, M.; Raison, Philippe E.; Somers, J.

doi:10.1016/j.jeurceramsoc.2016.07.016

Cited by 25 publications

(10 citation statements)

References 34 publications

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“…A very long T 1 is observed for LaPO 4 (1714 s, see Table I) as expected for this diamagnetic compound [14]. Our value differs from the one of 600 s published previously [21,83], probably due to the presence of different small quantities of impurity. EuPO 4 possesses a short T 1 of 210 ms being close to that of the paramagnetic GdPO 4 (460 ms) [21].…”

Section: Longitudinal Relaxation Timessupporting

confidence: 58%

Local structure and magnetism of LaxEu1−xPO4
Martel¹,
Rakhmatullin²,
Baldoví³
et al. 2019
Phys. Rev. B
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By combining high spinning speed (60 kHz) and low-field (4.7 T) 31 P solid-state NMR with magnetic susceptibility measurements, we experimentally characterized a series of solid solutions belonging to the La x Eu 1−x PO 4 (0 x 1) series. Analyses of the magnetic susceptibility data were carried out using the free ion model and crystal field theory calculations allowing to extract the electronic structure. The paramagnetic shifts of the P sites having one Eu 3+ cation in their surrounding were predicted by combining the determined crystal field and energy level values with density functional theory (DFT) calculations. For the La 0.9 Eu 0.1 PO 4 sample, these theoretical shifts gave a very good overall trend allowing the unambiguous attribution of each P site. This study paves the way for the future analysis of both magnetic susceptibility and NMR data for a broad range of materials containing paramagnetic rare-earth cations.

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Section: Longitudinal Relaxation Timessupporting

confidence: 58%

Local structure and magnetism of LaxEu1−xPO4
Martel¹,
Rakhmatullin²,
Baldoví³
et al. 2019
Phys. Rev. B
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“…It is then in the same order of magnitude that the Vicker's hardness determined for several other phosphate-based ceramic wasteforms envisaged for the specific conditioning of actinides, such as fluorapatite (3.7 GPa) [47], -TPD (4.4 GPa) [48] or NZPs (5.9 GPa) [49]. Also, it appears to be only slightly below the value reported by Popa et al for the CaTh(PO 4 ) 2 cheralite end-member sintered by SPS technique [50].…”

Section: Microhardnessmentioning

confidence: 60%

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

Qin

Mesbah

Lautru

et al. 2020

Journal of the European Ceramic Society

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“…The second one consists of the replacement of the phosphate groups by silicate entities to form Ln 1-x An x (PO 4 ) 1-x (SiO 4 ) x monazite-huttonite solid solutions 14,23,24 . The first mechanism is by far the most documented 10 and the actinide-based monazite-cheralite solid-solutions were usually synthesized through solid-state reactions [23][24][25][26][27][28][29] . However, there is a growing interest in the preparation of monazites by wet chemistry routes in order to improve the homogeneity and sintering properties of the powders 16,30,31 .…”

Section: Monazites (Lnpo 4 )mentioning

confidence: 99%

From Th-Rhabdophane to Monazite-Cheralite Solid Solutions: Thermal Behavior of Nd_1–2xTh_xCa_xPO₄·nH₂O (x = 0–0.15)

Qin

Mesbah

Clavier

et al. 2019

Crystal Growth & Design

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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CaTh(PO4)2 cheralite as a candidate ceramic nuclear waste form: Spark plasma sintering and physicochemical characterisation

Cited by 25 publications

References 34 publications

Local structure and magnetism of LaxEu1−xPO4
Martel¹,
Rakhmatullin²,
Baldoví³
et al. 2019
Phys. Rev. B
Self Cite
6
0
3
0
View full text Add to dashboard Cite

Local structure and magnetism of LaxEu1−xPO4
Martel¹,
Rakhmatullin²,
Baldoví³
et al. 2019
Phys. Rev. B
Self Cite
6
0
3
0
View full text Add to dashboard Cite

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

From Th-Rhabdophane to Monazite-Cheralite Solid Solutions: Thermal Behavior of Nd_1–2xTh_xCa_xPO₄·nH₂O (x = 0–0.15)

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CaTh(PO4)2 cheralite as a candidate ceramic nuclear waste form: Spark plasma sintering and physicochemical characterisation

Cited by 25 publications

References 34 publications

Local structure and magnetism of LaxEu1−xPO4Martel1, Rakhmatullin2, Baldoví3 et al. 2019Phys. Rev. BSelf Cite6030View full textAdd to dashboardCite

Local structure and magnetism of LaxEu1−xPO4Martel1, Rakhmatullin2, Baldoví3 et al. 2019Phys. Rev. BSelf Cite6030View full textAdd to dashboardCite

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

From Th-Rhabdophane to Monazite-Cheralite Solid Solutions: Thermal Behavior of Nd1–2xThxCaxPO4·nH2O (x = 0–0.15)

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Local structure and magnetism of LaxEu1−xPO4
Martel¹,
Rakhmatullin²,
Baldoví³
et al. 2019
Phys. Rev. B
Self Cite
6
0
3
0
View full text Add to dashboard Cite

Local structure and magnetism of LaxEu1−xPO4
Martel¹,
Rakhmatullin²,
Baldoví³
et al. 2019
Phys. Rev. B
Self Cite
6
0
3
0
View full text Add to dashboard Cite

From Th-Rhabdophane to Monazite-Cheralite Solid Solutions: Thermal Behavior of Nd_1–2xTh_xCa_xPO₄·nH₂O (x = 0–0.15)