High-temperature creep properties of uranium dioxide pellet

  • GAO J
  • WANG L
  • WANG Y
 et al. 
  • 0

    Readers

    Mendeley users who have this article in their library.
  • 7

    Citations

    Citations of this article.

Abstract

High-temperature creep properties of sintered uranium dioxide pellets with two grain sizes (9.0 μm and 23.8 μm) were studied. The results indicate that the creep rate becomes a little faster with the reduction of the uranium dioxide grain size at the same temperature and the same load. At the same temperature, the logarithmic value of the steady creep rate vs stress has linear relation, and with increasing load, the steady creep rate of the sintered uranium dioxide pellet increases. Under the same load, the steady creep rate of the sintered uranium dioxide pellet increases with increasing temperature; and the creep rates of sintered uranium dioxide pellet with the grain size of 9.0 μm and 23.8 μm under 10 MPa are almost the same. The creep process is controlled both by Nabarro-Herring creep and Hamper-Dorn creep for uranium dioxide pellet with grain size of 9.0 μm, while Hamper-Dorn creep is the dominant mechanism for uranium dioxide with grain size of 23.8 μm. © 2010 The Nonferrous Metals Society of China.

Author-supplied keywords

  • creep mechanism
  • creep property
  • grain size
  • uranium dioxide pellet

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

  • Jia cheng GAO

  • Liang fen WANG

  • Yong WANG

  • Shu fang WU

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free