STABILIZING EFFECTS OF OXIDE ADDITIONS TO URANIUM OXIDE

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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 ... continued below

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Wilson, W.B. & Gerds, A.F. September 13, 1960.

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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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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: BMI-1467
  • Grant Number: W-7405-ENG-92
  • DOI: 10.2172/4139307 | External Link
  • Office of Scientific & Technical Information Report Number: 4139307
  • Archival Resource Key: ark:/67531/metadc872231

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Creation Date

  • September 13, 1960

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Nov. 18, 2016, 7:28 p.m.

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Wilson, W.B. & Gerds, A.F. STABILIZING EFFECTS OF OXIDE ADDITIONS TO URANIUM OXIDE, report, September 13, 1960; Columbus, Ohio. (digital.library.unt.edu/ark:/67531/metadc872231/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.