STABILIZING EFFECTS OF OXIDE ADDITIONS TO URANIUM OXIDE | Zendy

W.B. Wilson | Zendy; A.F. Gerds | Zendy

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STABILIZING EFFECTS OF OXIDE ADDITIONS TO URANIUM OXIDE

Author(s) -

W.B. Wilson,

A.F. Gerds

Publication year - 1960

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/4139307

Subject(s) - uranium , uranium oxide , oxide , oxidizing agent , uranium dioxide , chemistry , inorganic chemistry , materials science , analytical chemistry (journal) , metallurgy , organic chemistry , chromatography

An investigation of the stabilizing influence of oxide additions to uranium oxide was continued. These additions are employed to eliminate the phase transformation to U/sub 3/O?sub 8/ which occurs when UO/sub 2/ is exposed to an oxidizing environment at elevated temperatures and to reduce the volatility or transpiration losses of uranium oxide which become appreciable in air at temperatures in excess of 1200 deg C. The results show that CaO may be successfully employed in partial substitution for La/sub 2/O/sub 3/ and Y/sub 2/O/ sub 3/. The resulting solid solutions exhibited high-temperature stability comparable to that of the "binary" solid solutions of UO/sub 2/ containing La/sub 2/O/sub 3/ or Y/sub 2/O/sub 3/. On the basis of thes e and other results some alternative approaches appear possible to reduce the amount and cross section of additive required for stabilization. (auth

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