DISSOCIATION PRESSURES OF HYDRIDED ZIRCONIUM-URANIUM ALLOYS

Technical Report · Fri Mar 25 04:00:00 EST 1960

OSTI ID:4840052

Pressure-temperature isochores were obtained for zirconium-hydrogen alloys, 93 wt% Zr -7 wt% U hydride alloys, and 90 wt% Zr-10 wt% U hydride alloys. Hydrogen compositions of these alloys ranged from 45 at% to 66 at%. The studies were conducted between 1200 and 1500 deg F. Comparison of the pressure- composition-temperature results of the three alloys showed that the urarium is in an inert phase with respect to the dissocintion pressures of the alloys. The dissocintion pressure can be expressed simply as a function of temperature and H/ Zr, i.e., atomic ratio. The enthalpy values for four phase regions of the zirconium-hydrogen system were obtained from the dissocintion pressure data. Equations were also derived to express the dissocintion pressure-composition- temperature relationships of these four regions. (auth)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• NSA Number: NSA-15-031183
• OSTI ID: 4840052
• Report Number(s): NAA-SR-4245(Del.)
• Country of Publication: United States
• Language: English

Related Subjects

ATOMS
DECOMPOSITION
ENTHALPY
EQUATIONS
HIGH TEMPERATURE
HYDROGEN
METALS, CERAMICS, AND OTHER MATERIALS
PHASE DIAGRAMS
PRESSURE
QUANTITY RATIO
TEMPERATURE
THERMODYNAMICS
URANIUM
URANIUM ALLOYS
URANIUM HYDRIDES
ZIRCONIUM ALLOYS
ZIRCONIUM HYDRIDES