Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Olivier Terra"'
Publikováno v:
Journal of the American Ceramic Society
Journal of the American Ceramic Society, Wiley, 2008, 91, pp.3673-3682. ⟨10.1111/j.1551-2916.2008.02678.x⟩
Journal of the American Ceramic Society, 2008, 91, pp.3673-3682. ⟨10.1111/j.1551-2916.2008.02678.x⟩
Journal of the American Ceramic Society, Wiley, 2008, 91, pp.3673-3682. ⟨10.1111/j.1551-2916.2008.02678.x⟩
Journal of the American Ceramic Society, 2008, 91, pp.3673-3682. ⟨10.1111/j.1551-2916.2008.02678.x⟩
The simultaneous incorporation of thorium and uranium(IV) in the rare-earth orthophosphates from a mixture of powdered AnO2, (NH4)(H2PO4), and Ca(HPO4)·2H2O was successfully performed, leading to the formation of single-phase Th-brabantite (Ca0.5Th0
Publikováno v:
Journal of Nuclear Materials. 366:70-86
Unlike thorium which incorporation is easy and quantitative in the britholite structure, that of tetravalent uranium appears rather difficult even after heating at high temperature. Indeed, only about 3.5 wt% of uranium (instead of 10.3 wt% expected)
Autor:
Nicolas Dacheux, Nicolas Clavier, Anne-Charlotte Robisson, Jean-Eric Lartigue, Fabienne Audubert, Olivier Terra, Christophe Guy
Publikováno v:
Comptes Rendus. Chimie
Comptes Rendus. Chimie, Académie des sciences (Paris), 2004, 7, pp.1141-1152. ⟨10.1016/j.crci.2004.02.019⟩
Comptes Rendus. Chimie, Académie des sciences (Paris), 2004, 7, pp.1141-1152. ⟨10.1016/j.crci.2004.02.019⟩
In the field of the immobilisation of high-activity-level and long-life radwaste (HAVL) for a deep underground repository, several phosphate matrices were already proposed as good candidates to delay the release of actinides in the near-field of such
Autor:
Olivier Terra, Didier Bernache-Assollant, Virginie Serin, Nicolas Dacheux, Fabienne Audubert, Renaud Podor, Damien Bregiroux
Publikováno v:
ChemInform. 39
On the basis of optimized grinding/heating cycles developed for several phosphate-based ceramics, the preparation of brabantite and then monazite/brabantite solid solutions loaded with tetravalent thorium, uranium, and cerium (as a plutonium surrogat
Autor:
Virginie Serin, Fabienne Audubert, Didier Bernache-Assollant, Damien Bregiroux, Renaud Podor, Nicolas Dacheux, Olivier Terra
Publikováno v:
Inorganic Chemistry
Inorganic Chemistry, American Chemical Society, 2007, 46, pp.10372-10382. ⟨10.1021/ic7012123⟩
Inorganic Chemistry, 2007, 46 (24), pp.10372-10382. ⟨10.1021/ic7012123⟩
Inorganic Chemistry, American Chemical Society, 2007, 46 (24), pp.10372-10382. ⟨10.1021/ic7012123⟩
Inorganic Chemistry, American Chemical Society, 2007, 46, pp.10372-10382. ⟨10.1021/ic7012123⟩
Inorganic Chemistry, 2007, 46 (24), pp.10372-10382. ⟨10.1021/ic7012123⟩
Inorganic Chemistry, American Chemical Society, 2007, 46 (24), pp.10372-10382. ⟨10.1021/ic7012123⟩
On the basis of optimized grinding/heating cycles developed for several phosphate-based ceramics, the preparation of brabantite and then monazite/brabantite solid solutions loaded with tetravalent thorium, uranium, and cerium (as a plutonium surrogat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a5a5f96898dce29898a02d032593c98
http://hal.in2p3.fr/in2p3-00211884
http://hal.in2p3.fr/in2p3-00211884
Publikováno v:
Journal of Nuclear Materials
E-MRS 2006 : Symposium N
E-MRS 2006 : Symposium N, Sep 2006, Strasbourg, pp.451-458, ⟨10.1016/j.jnucmat.2007.01.132⟩
E-MRS 2006 : Symposium N
E-MRS 2006 : Symposium N, Sep 2006, Strasbourg, pp.451-458, ⟨10.1016/j.jnucmat.2007.01.132⟩
International audience; Phosphate ceramics (britholites, monazite/brabantite solid solutions, thorium phosphate diphosphate, i.e. β-TPD, and associated β-TPD/monazite composites) are often considered as potential candidates to immobilize tri- and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::313a23679f353214ec7c4fc04d05a97e
http://hal.in2p3.fr/in2p3-00259095
http://hal.in2p3.fr/in2p3-00259095
Publikováno v:
Journal of Nuclear Materials
Journal of Nuclear Materials, 2006, 354, pp.49-65. ⟨10.1016/j.jnucmat.2006.02.094⟩
Journal of Nuclear Materials, Elsevier, 2006, 354, pp.49-65. ⟨10.1016/j.jnucmat.2006.02.094⟩
Journal of Nuclear Materials, 2006, 354, pp.49-65. ⟨10.1016/j.jnucmat.2006.02.094⟩
Journal of Nuclear Materials, Elsevier, 2006, 354, pp.49-65. ⟨10.1016/j.jnucmat.2006.02.094⟩
In the field of the immobilization of tri- and tetravalent minor actinides, apatites and especially britholites were already proposed as good candidates. In order to simulate tetravalent minor actinides, the incorporation of thorium, through dry chem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a65b8a9aca60c26465b49af21ce7193f
https://hal.in2p3.fr/in2p3-00119645
https://hal.in2p3.fr/in2p3-00119645
Publikováno v:
Journal of Nuclear Materials
E-MRS 2005 Spring Meeting Symposium N on Nuclear Materials (including the 10th Inert Matrix Fuel Workshop)
E-MRS 2005 Spring Meeting Symposium N on Nuclear Materials (including the 10th Inert Matrix Fuel Workshop), May 2005, Strasbourg, France. pp.224-232, ⟨10.1016/j.jnucmat.2006.02.058⟩
E-MRS 2005 Spring Meeting Symposium N on Nuclear Materials (including the 10th Inert Matrix Fuel Workshop)
E-MRS 2005 Spring Meeting Symposium N on Nuclear Materials (including the 10th Inert Matrix Fuel Workshop), May 2005, Strasbourg, France. pp.224-232, ⟨10.1016/j.jnucmat.2006.02.058⟩
Three phosphate-based ceramics were studied for the immobilization of tri- and tetravalent actinides: britholite Ca 9 Nd 1 - x An x IV ( PO 4 ) 5 - x ( SiO 4 ) 1 + x F 2 , monazite/brabantite Ln 1 - 2 x III Ca x An x IV PO 4 and thorium phosphate dip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4f51dfd18237d18d37fc62897e06f39
http://hal.in2p3.fr/in2p3-00087842
http://hal.in2p3.fr/in2p3-00087842
Publikováno v:
New Journal of Chemistry
New Journal of Chemistry, Royal Society of Chemistry, 2003, 27, pp.957-967. ⟨10.1039/b212805p⟩
New Journal of Chemistry, Royal Society of Chemistry, 2003, 27, pp.957-967. ⟨10.1039/b212805p⟩
Several La1 − xGdxPO4 solid solutions were prepared in the monazite- or rhabdophane-type structures for various x values using three methods of preparation (direct evaporation, synthesis in closed PTFE containers on a sand bath or in autoclaves). S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c2a3dcefb5d51e434aa35b714eb8fe5
http://hal.in2p3.fr/in2p3-00023826
http://hal.in2p3.fr/in2p3-00023826
Publikováno v:
Scopus-Elsevier
Due to a natural occurrence, a good resistance to radiation damage and a low solubility in neutral and basic conditions, Nd-britholite of formula Ca9Nd(PO4)5(SiO4)F2 was already considered as a potential host matrix for the specific immobilization of