Vapor pressures and vapor compositions in equilibrium with hypostoichiometric uranium-plutonium dioxide at high temperatures

Conference · Fri Jan 01 00:00:00 EST 1982

OSTI ID:6487885

Green, D W; Fink, J K; Leibowitz, L

Vapor pressures and vapor compositions in equilibrium with a hypostoichiometric uranium-plutonium dioxide condensed phase (U/sub 1-y/Pu/sub y/)O/sub 2-x/, as functions of T, x, and y, have been calculated for 0.0 less than or equal to x less than or equal to 0.1, 0.0 less than or equal to y less than or equal to 0.3, and for the temperature range 2500 less than or equal to T less than or equal to 6000 K. The range of compositions and temperatures was limited to the region of interest to reactor safety analysis. Thermodynamic functions for the condensed phase and for each of the gaseous species were combined with an oxygen potential model to obtain partial pressures of O, O/sub 2/, Pu, PuO, PuO/sub 2/, U, UO, UO/sub 2/, and UO/sub 3/ as functions of T, x, and y.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6487885
• Report Number(s): CONF-820985-3; ON: DE83007722
• Resource Relation: Conference: 8. European conference on thermophysical properties - high temperatures high pressure, Baden-Baden, F.R. Germany, 27 Sep 1982; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
36 MATERIALS SCIENCE
PLUTONIUM DIOXIDE
VAPOR PRESSURE
REACTOR MATERIALS
URANIUM DIOXIDE
REACTOR SAFETY
ULTRAHIGH TEMPERATURE
VERY HIGH TEMPERATURE
ACTINIDE COMPOUNDS
CHALCOGENIDES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLUTONIUM COMPOUNDS
PLUTONIUM OXIDES
SAFETY
THERMODYNAMIC PROPERTIES
TRANSURANIUM COMPOUNDS
URANIUM COMPOUNDS
URANIUM OXIDES
220900* - Nuclear Reactor Technology- Reactor Safety
360204 - Ceramics
Cermets
& Refractories- Physical Properties