Results
author = "Caurant, Daniel"
NEODYMIUM PARTITIONING IN ZIRCONOLITE-BASED GLASS-CERAMICS DESIGNED FOR MINOR ACTINIDES IMMOBILIZATION
Description :
This study deals with glass-ceramic matrices designed for the conditionning of minor actinides, in which zirconolite crystals (CaZrTi2O7) are homogeneously dispersed in a residual glassy matrix. Good immobilization performances require a high enrichment of actinides in the crystalline phase (double ...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Nouvelles matrices vitrocéramiques silicatées renfermant de la zirconolite (CaZrTi2O7) destinées au confinement des déchets nucléaires à vie longue
Description :
Les recherches actuelles menées dans le domaine du confinement des déchets nucléaires de haute activité tant civils (séparation poussée des radionucléides à vie longue issus des déchets de l'aval du cycle électronucléaire) que militaires (problèmes posés par les excédents de plutonium militaire) ten...
Repository :
HAL - Hyper Article on Line
Language(s) :
French
Etude de céramiques et de vitrocéramiques à base de zirconolite-Hf (CaHfTi2O7) destinées au confinement de déchets nucléaires de haute activité
Description :
Les actinides mineurs (Np, Am, Cm) sont majoritairement responsables de la radiotoxicité à long terme des déchets nucléaires de haute activité. De nouvelles matrices vitrocéramiques à base de zirconolite CaZrTi2O7 ont fait l'objet de plusieurs études dans le cadre d'un confinement spécifique de ces ...
Repository :
HAL - Hyper Article on Line
Language(s) :
French
CHARACTERIZATION OF THE MICROSTRUCTURE OF ZIRCONOLITE-BASED GLASS-CERAMICS
Description :
December 1991 legislation in France has spurred research on enhanced separation and conditioning or transmutation of long-lived radionuclides from high level radioactive wastes (HLW). In this field, we have studied zirconolite-based glass-ceramics in which the crystalline phase (zirconolite: CaZrTi2...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Effect of the nature of alkali and alkaline-earth oxides on the structure and crystallization of an aluminoborosilicate glass developed to immobilize highly concentrated nuclear waste solutions
Author(s) :
Quintas, Arnaud
,
Caurant, Daniel
,
Majérus, Odile
,
Charpentier, Thibault
,
Dussossoy, Jean-Luc
Description :
A complex rare-earth rich aluminoborosilicate glass has been proved to be a good candidate for the immobilization of new high level radioactive wastes. A simplified seven-oxides composition of this glass was selected for this study. In this system, sodium and calcium cations were supposed in other w...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Effect of changing the rare earth cation type on the structure and crystallization behavior of an aluminoborosilicate glass
Author(s) :
Quintas, Arnaud
,
Caurant, Daniel
,
Majérus, Odile
,
Dussossoy, Jean-Luc
,
Charpentier, Thibault
Description :
An aluminoborosilicate glass, containing high amount of rare earth (RE) accordingly to the following composition 50.68 SiO2 - 4.25 Al2O3 - 8.50 B2O3 - 12.19 Na2O - 4.84 CaO - 3.19 ZrO2 - 16.35 RE2O3 (wt.%), is currently under study for the immobilization of nuclear waste solutions. In this work, we ...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Characterization of the Microstructure of Zirconolite-Based Glass-Ceramics
Description :
December 1991 legislation in France has spurred research on enhanced
separation and conditioning or transmutation of long-lived radionuclides from
high level radioactive wastes (HLW). In this field, we have studied
zirconolite-based glass-ceramics in which the crystalline phase (zirconolite:
CaZrT...
Repository :
arXiv
Language(s) :
Undetermined
Effect of the nature of alkali and alkaline-earth oxides on the structure and crystallization of an aluminoborosilicate glass developed to immobilize highly concentrated nuclear waste solutions
Author(s) :
Quintas, Arnaud
,
Caurant, Daniel
,
Majérus, Odile
,
Charpentier, Thibault
,
Dussossoy, Jean-Luc
Description :
A complex rare-earth rich aluminoborosilicate glass has been proved to be a
good candidate for the immobilization of new high level radioactive wastes. A
simplified seven-oxides composition of this glass was selected for this study.
In this system, sodium and calcium cations were supposed in other...
Repository :
arXiv
Language(s) :
Undetermined
Effect of changing the rare earth cation type on the structure and crystallization behavior of an aluminoborosilicate glass
Author(s) :
Quintas, Arnaud
,
Caurant, Daniel
,
Majérus, Odile
,
Dussossoy, Jean-Luc
,
Charpentier, Thibault
Description :
An aluminoborosilicate glass, containing high amount of rare earth (RE)
accordingly to the following composition 50.68 SiO2 - 4.25 Al2O3 - 8.50 B2O3 -
12.19 Na2O - 4.84 CaO - 3.19 ZrO2 - 16.35 RE2O3 (wt.%), is currently under
study for the immobilization of nuclear waste solutions. In this work, w...
Repository :
arXiv
Language(s) :
Undetermined
Control of nucleation and crystal growth of a silicate apatitic phase in a glassy matrix
Author(s) :
De Ligny, D.
,
Caurant, Daniel
,
Bardez, I.
,
Dussossoy, J.-L.
,
Loiseau, P.
,
Neuville, D.R.
Description :
Nucleation and growth of crystal in an oxide glass was studied in a Si B Al Zr Nd Ca Na O system. The nucleation and growth process was monitored by thermal analysis and isothermal experiments. For the Ca sample the crystallization is homogeneous in the bulk showing a slow increase of crystallinity ...
Repository :
HAL - Hyper Article on Line
Language(s) :
English