US AND ThS BODIES

Technical Report · Thu Oct 31 04:00:00 EST 1963

OSTI ID:4762940

Shalek, P D

Uranium monosulfide of 99% purity can be vacuum sintered to 86% theoretical density while ThS of 96.5% purity can be vacuum sintered to 97.5% theoretical density. Solid solutions show intermediate sintering characteristics. Argon sintering produced US bodies of much higher density. The lower compositional limit of the US phase may be as low as US/sub 0.90/. Monosuifide bodies are relatively soft and brittle materials which exhibit the appearance, electric conductivity, and machineability of metals. Their thermal conductivity is expected to be good. Modulus of rupture values for the monosuifides are moderately high. The linear thermal expansion coefficients of US and ThS are almost the same as those of the dioxides. As expected, the monosulfides show poor oxidation resistance but are resistant to boiling water. Stability in H/sub 2/ is indicated. The US microstructure shows stacking faults; that of ThS does not. Efforts to eliminate these faults through annealing are indicated since it is believed they adversely affect the properties of the bodies. (auth)

• Research Organization: Argonne National Lab., Ill.
• DOE Contract Number: W-31109-ENG-38
• NSA Number: NSA-17-006636
• OSTI ID: 4762940
• Report Number(s): ANL-FGF-247; UAC-5151
• Country of Publication: United States
• Language: English

Related Subjects

ANNEALING
BOILING
BRITTLENESS
CONFIGURATION
CORROSION PROTECTION
DEFECTS
DENSITY
ELECTRIC CONDUCTIVITY
EXPANSION
HYDROGEN
MACHINING
METALLOGRAPHY
METALS
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
OXIDATION
OXIDES
SINTERING
STABILITY
STACKING FAULTS
TEMPERATURE
THORIUM SULFIDES
URANIUM SULFIDES
WATER