New modelling of the U–O–Zr phase diagram in the hyper-stoichiometric region and consequences for the fuel rod liquefaction in oxidising conditions

M. Barrachin, P.Y. Chevalier, B. Cheynet, E. Fischer

Journal of Nuclear Materials 375 (3) 397-409 (2008) · Elsevier BV

DOI: 10.1016/j.jnucmat.2008.02.003

Data: JSON record · id doi:10.1016/j.jnucmat.2008.02.003 · metadata: crossref

Roles in ORCHID

• read by ORCHID (values extracted): 102 released values
• assessment behind a TDB file: UO-08Bar.tdb (O–U)

Systems

O–U, O–U–Zr, Fe–O–U–Zr

Evidence in ORCHID

102 values read from this paper (89 accepted), from 5 tables and 10 text passages.

ESPEI datasets derived: 2 (experimental/O-U/UO-02Che.zpf-08.json …).

Phase-registry phases citing it: phase:o-u:a20-orthorhombic, phase:o-u:bcc-a2, phase:o-u:fcc-a1, phase:o-u:gas, phase:o-u:hcp-a3, phase:o-u:liquid, phase:o-u:o2gas, phase:o-u:u-tetragonal, phase:o-u:u3o8, phase:o-u:u4o9, phase:o-u:uo2-c1, phase:o-u:uo3

Availability

Read by ORCHID: yes (values_extracted). Open-access licence (Crossref license field): none deposited. Crossref is-referenced-by count: 35 (retrieved 2026-10-23).

Relations

Cited by (Crossref reference lists) (6)

• Study on the Phase Equilibria of the U-Zr-O Ternary System with CALPHAD Method (2026) [crossref_reference_list]
• The SGTE collection of binary datasets (2025) [crossref_reference_list]
• Contribution to the thermodynamic description of the corium – The U-Zr-O system (2018) [crossref_reference_list]
• Thermodynamic analysis for molten corium stratification with U-Zr-O-Fe database (2023) [crossref_reference_list]
• A simplified model for the quaternary U-Zr-Fe-O system in the miscibility gap (2020) [crossref_reference_list]
• O-U-Zr Ternary Phase Diagram Evaluation (2020) [crossref_reference_list]

References (Crossref, publisher-deposited) (7)

• Determination of solidus-liquidus temperatures in the uo2 + x system (−0.50<x<0.20) (1970) [crossref_reference_list]
• Progress in the thermodynamic modelling of the O–U–Zr ternary system (2004) [crossref_reference_list]
• Melting of stoichiometric and hyperstoichiometric uranium dioxide (2005) [crossref_reference_list]
• Thermodynamics of the O–U system: III – Critical assessment of phase diagram data in the U–UO2+x composition range (2006) [crossref_reference_list]
• Progress in the thermodynamic modelling of the O–U binary system (2002) [crossref_reference_list]
• Thermodynamic assessment of the uranium–oxygen system (2002) [crossref_reference_list]
• Laser-Pulse Melting of Nuclear Refractory Ceramics (2002) [crossref_reference_list]

Cites (values carry this citation) (5)

• Melting of stoichiometric and hyperstoichiometric uranium dioxide (2005) — 39 values [orchid_extraction]
• Determination of solidus-liquidus temperatures in the uo2 + x system (−0.50<x<0.20) (1970) — 24 values [orchid_extraction]
• Progress in the thermodynamic modelling of the O–U–Zr ternary system (2004) — 2 values [orchid_extraction]
• Laser-Pulse Melting of Nuclear Refractory Ceramics (2002) — 2 values [orchid_extraction]
• Thermodynamic assessment of the uranium–oxygen system (2002) — 1 values [orchid_extraction]

TDB files modelling its system (1)

• tdb:UO-08Bar.tdb [sgte_tdb_header]

Reassessed by (1)

• Thermodynamic analysis for molten corium stratification with U-Zr-O-Fe database (2023) [citation+same-system]

Reassesses (cites an earlier assessment of the same system) (3)

• Progress in the thermodynamic modelling of the O–U–Zr ternary system (2004) [citation+same-system]
• Progress in the thermodynamic modelling of the O–U binary system (2002) [citation+same-system]
• Thermodynamic assessment of the uranium–oxygen system (2002) [citation+same-system]

Data papers used (5)

• Melting of stoichiometric and hyperstoichiometric uranium dioxide (2005) — 39 values [orchid_extraction]
• Determination of solidus-liquidus temperatures in the uo2 + x system (−0.50<x<0.20) (1970) — 24 values [orchid_extraction]
• Progress in the thermodynamic modelling of the O–U–Zr ternary system (2004) — 2 values [orchid_extraction]
• Laser-Pulse Melting of Nuclear Refractory Ceramics (2002) — 2 values [orchid_extraction]
• Thermodynamic assessment of the uranium–oxygen system (2002) — 1 values [orchid_extraction]