THE LIQUIDUS FOR THE SYSTEM UO$sub 2$-PuO$sub 2$
Technical Report
·
OSTI ID:4802605
Melting points of UO/sub 2/ and PuO/sub 2/ in helium were found to be 2730 plus or minus 30 deg C and 2280 plus or minus 30 deg C, respectively. PuO/sub 2/ does not reduce to a sub-oxide during melting in helium; however, it evolves oxygen which results in an expansion of the unit cell, yielding O/Pu atom ratios of 1.62. Since oxygen is lost at melting temperatures, the equilibrium melting point for PuO/sub 2.00/ will have to be determined under a partial pressure of oxygen; the 2280 deg C temperature reported is considered a pseudo melting point. The liquidus for the system U0/sub 2/-PuO/sub 2/ exhibits a melting maximum of 2825 deg C at U0/sub 2/-10 wt% PuO/sub 2/. Above this composition, the liquidus exhibits good continuity and reduces gradually with increased PuO/sub 2/ content. Lattice constants of melted but are slightly greater than anticipated. This is attributed to a loss of oxygen. (auth)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- AT(45-1)-1350
- NSA Number:
- NSA-16-013576
- OSTI ID:
- 4802605
- Report Number(s):
- HW-69832
- Country of Publication:
- United States
- Language:
- English
Similar Records
MELTING BEHAVIOR IN THE SYSTEM UO$sub 2$-PuO$sub 2$
MELTING POINTS IN THE SYSTEM PuO$sub 2$-UO$sub 2$
PROPERTIES OF PuO$sub 2$ AND PuO$sub 2$-ThO$sub 2$ CERAMICS
Technical Report
·
Wed Jun 13 00:00:00 EDT 1962
·
OSTI ID:4732190
MELTING POINTS IN THE SYSTEM PuO$sub 2$-UO$sub 2$
Technical Report
·
Thu Apr 14 23:00:00 EST 1960
·
OSTI ID:4115231
PROPERTIES OF PuO$sub 2$ AND PuO$sub 2$-ThO$sub 2$ CERAMICS
Technical Report
·
Fri Jun 30 00:00:00 EDT 1961
·
OSTI ID:4782870