Gaseous oxidation of uranium alloys

Author: Cathcart, J. V.
Published: [Place of publication not identified] : [publisher not identified], 1973.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1973.
Physical Description: microfiche : negative ; 11 x 15 cm

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Summary

The gaseous oxidation of uranium and its alloys is a complex process. Material transport across the oxide scale occurs predominately by anion diffusion, leading to the development of large stresses in the oxide. The thermodynamic stability of UO/sub 2/ is such that the oxygen potential in a compact layer of UO/sub 2/ is so low that many constituents of uranium alloys remain unoxidized and are found embedded in the UO/sub 2/ scale. The high- temperature oxidation properties of uranium and its alloys are reviewed in light of the above parameters. Materials covered include binary alloys of uranium with Nb, Zr, Mo, V, Ti, Al, and Cu as well as the ternary system U--Nb--Zr and other more complex formulations. Details of oxygen diffusion in UO/sub 2/ are discussed. Evidence is given for stress generation during oxidation, and mechanisms for stress generation and relief are described. (25 figures, 52 references) (auth)

Report Numbers

CONF-740205-4

Other Subject(s)

Collection

U.S. Atomic Energy Commission depository collection.

Note

NSA number: NSA-29-024645
OSTI Identifier 4330806
Research organization: Oak Ridge National Lab., Tenn. (USA).

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