Grain Growth of UO2. Part I

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Abstract: (1) Grain growth in UO2 pellets was studies between 100 C and 2600 C. The pellets were encapsulated in small vacuum-tight tungsten containers in an argon atmosphere. (2) The grain size-time relationship could be expressed by an equation. A low exponent, m>_ 1/3, was found in those experiments and is related to the type of UO2 investigated. An activation energy of 65 kcal/mole was obtained for the grain growth process. The time exponent, m, increased with increasing temperature if the pellets were not contained in closed capsules bu heated under an argon pressure of 1.5 atm. (3) An interaction … continued below

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49 pages ; illustrations.

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Hausner, H. August 15, 1963.

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  • Vallecitos Atomic Laboratory
    Publisher Info: General Electric Company. Vallecitos Atomic Laboratory. Atomic Power Equipment Department.
    Place of Publication: San Jose, California

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Description

Abstract: (1) Grain growth in UO2 pellets was studies between 100 C and 2600 C. The pellets were encapsulated in small vacuum-tight tungsten containers in an argon atmosphere. (2) The grain size-time relationship could be expressed by an equation. A low exponent, m>_ 1/3, was found in those experiments and is related to the type of UO2 investigated. An activation energy of 65 kcal/mole was obtained for the grain growth process. The time exponent, m, increased with increasing temperature if the pellets were not contained in closed capsules bu heated under an argon pressure of 1.5 atm. (3) An interaction between tungsten and UO2 could be observed at a a temperature of 2600 C after prolonged heat treatment.

Physical Description

49 pages ; illustrations.

Notes

Digitized from microopaque cards.

U.S. Atomic Energy Commission Contract AT(04-3)-189 Project Agreement 17.

Includes bibliographic references (pages 41-42).

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  • Report No.: GEAP-4315
  • Grant Number: AT(04-3)-189 PA 17
  • SuDoc Number: Y 3.At 7:22/GEAP-4315
  • Accession or Local Control No: metadc1201374
  • Archival Resource Key: ark:/67531/metadc1201374

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Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

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Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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Creation Date

  • August 15, 1963

Added to The UNT Digital Library

  • Aug. 15, 2019, 10:26 p.m.

Description Last Updated

  • June 25, 2024, 1:22 a.m.

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Hausner, H. Grain Growth of UO2. Part I, report, August 15, 1963; San Jose, California. (https://digital.library.unt.edu/ark:/67531/metadc1201374/: accessed November 5, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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