In-situ High Temperature X-ray Diffraction Study of the Am-O System

被引：0

作者：

Epifano, E. ^{[1
]}

Belin, R. C. ^{[1
]}

Richaud, J-C ^{[1
]}

Vauchy, R. ^{[1
]}

Strach, M. ^{[1
]}

Lebreton, F. ^{[1
]}

Delahaye, T. ^{[2
]}

Gueneau, C. ^{[3
]}

Martin, P. M. ^{[1
]}

机构：

[1] CEA, DEN, DTEC, SECA,LCC,Cadarache, F-13108 St Paul Les Durance, France

[2] CEA, DEN, DRCP, SERA,LCAR,Marcoule, F-30207 Bagnols Sur Ceze, France

[3] CEA, DEN, DPC, SCCME,LM2T,Saclay, F-91191 Gif Sur Yvette, France

来源：

MRS ADVANCES | 2016年 / 1卷 / 62期

关键词：

D O I：

10.1557/adv.2017.200

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the frame of minor actinide recycling, (U, Am)O-2 are promising transmutation targets. To assess the thermodynamic properties of the U-Am-O system, it is essential to have a thorough knowledge of the binary phase diagrams, which is difficult due to the lack of thermodynamic data on the Am-O system. Nevertheless, an Am-O phase diagram modelling has been recently proposed by Gotcu. Here, we show a recent investigation of the Am-O system using in-situ High Temperature X-ray Diffraction under controlled atmosphere. By coupling our experimental results with the thermodynamic calculations based on the Gotcu model, we propose for the first time a relation between the lattice parameter and the departure from stoichiometry.

引用

页码：4133 / 4137

页数：5

共 15 条

[1] Synthesis of new mixed actinides oxalates as precursors of actinides oxide solid solutions [J].

Arab-Chapelet, B. ;

Grandjean, S. ;

Nowogrocki, G. ;

Abraham, F. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 444 (SPEC. ISS.) :387-390

[2] PHASE RELATIONSHIPS IN AMERICIUM-OXYGEN SYSTEM [J].

CHIKALLA, TD ;

EYRING, L .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1968, 30 (01) :133-&

[3] THERMAL-EXPANSION OF ACTINIDE DIOXIDES [J].

FAHEY, JA ;

TURCOTTE, RP ;

CHIKALLA, TD .

INORGANIC & NUCLEAR CHEMISTRY LETTERS, 1974, 10 (06) :459-465

[4] A thermodynamic study of the Pu-Am-O system [J].

Gotcu-Freis, P. ;

Colle, J. -Y. ;

Gueneau, C. ;

Dupin, N. ;

Sundman, B. ;

Konings, R. J. M. .

JOURNAL OF NUCLEAR MATERIALS, 2011, 414 (03) :408-421

[5] U1-xAmxO2±δ MABB fabrication in the frame of the DIAMINO irradiation experiment [J].

Horlait, Denis ;

Lebreton, Florent ;

Delahaye, Thibaud ;

Herlet, Nathalie ;

Dehaudt, Philippe .

ATALANTE 2012 INTERNATIONAL CONFERENCE ON NUCLEAR CHEMISTRY FOR SUSTAINABLE FUEL CYCLES, 2012, 7 :485-492

[6] In-situ X-ray diffraction study of phase transformations in the Am-O system [J].

Lebreton, Florent ;

Belin, Renaud C. ;

Delahaye, Thibaud ;

Blanchart, Philippe .

JOURNAL OF SOLID STATE CHEMISTRY, 2012, 196 :217-224

[7] THE THERMAL-EXPANSION OF SOLID UO2 AND (U, PU) MIXED OXIDES - A REVIEW AND RECOMMENDATIONS [J].

MARTIN, DG .

JOURNAL OF NUCLEAR MATERIALS, 1988, 152 (2-3) :94-101

[8] Am-O (Americium-Oxygen) [J].

Okamoto, H. .

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2011, 32 (06) :572-573

[9]

Okamoto H., 1991, J PHASE EQUILIB, V12, P696

[10] Fabrication and characterisation of U0.85Am0.15O2-x discs for MARIOS irradiation program [J].

Prieur, Damien ;

Jankowiak, Aurelien ;

Delahaye, Thibaud ;

Herlet, Nathalie ;

Dehaudt, Philippe ;

Blanchart, Philippe .

JOURNAL OF NUCLEAR MATERIALS, 2011, 414 (03) :503-507

← 1 2 →