The Development Of Porosity In Uranium During Thermal Cycling

Journal Article · Wed Apr 01 04:00:00 EST 1959 · Reactor Technol.

DOI:https://doi.org/10.1016/S0368-3273(15)30066-3· OSTI ID:4251867

Bochvar, A A; Tomson, G I

During rapid thermal cycling tests, in which the duration of each cycle was 50 secs considerable changes occurred in uranium. The extent of the changes depended on the temperature interval of each cycle. Thermal cycling in the alpha -range to an upper temperature of 550 to 600 C caused a directional deformation in textured uranium containing about 0.1 per cent carbon. The growth was accompanied by the development of porosity, and a consequent fall in density. After 5000 cycles, the density decreased by 8 per cent. Thermal cycling through both the alpha - 6 wt.% Ru-U all and 6 wt.% Ru-U all - phase transformations caused a rapid change in the shape of the uranium specimens, and rapid development of porosity. The drop in density, after 1000 such cycles, was 30 per cent. (auth)

• Research Organization: Originating Research Org. not identified
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-014565
• OSTI ID: 4251867
• Journal Information: Reactor Technol., Journal Name: Reactor Technol. Vol. Vol: 1
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALLOTROPY
ANISOTROPY
DEFORMATION
DENSITY
HEATING
MEASURED VALUES
METALLURGY AND CERAMICS
POROSITY
URANIUM
URANIUM-ALPHA
URANIUM-BETA
URANIUM-GAMMA