Title: Crystal size effect on the compressibility of nano-crystalline uranium dioxide
Authors: ZVORISTE CARMEN ELENAHEATHMAN StephenJOVANI-ABRIL RaquelSPINO Jose LuisJANSSEN ARNECACIUFFO Roberto
Citation: JOURNAL OF NUCLEAR MATERIALS vol. 435 no. 1 - 3 p. 123-127
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2013
JRC N°: JRC73279
ISSN: 0022-3115
URI: http://www.sciencedirect.com/science/article/pii/S0022311512006691
http://publications.jrc.ec.europa.eu/repository/handle/JRC73279
DOI: 10.1016/j.jnucmat.2012.12.012
Type: Articles in periodicals and books
Abstract: The crystal size dependence of the bulk modulus of nano-crystalline uranium dioxide is investigated by means of in-situ high pressure x-ray diffraction. Samples with average particle sizes of 4, 6 and 34 nm as measured from high resolution TEM images were studied up to 27 GPa revealing that all three nano-crystalline UO2 samples show a drastic decrease of bulk modulus with decreasing particle size. The influence of choosing the right EOS to fit the compression data is also discussed.
JRC Directorate:Nuclear Safety and Security

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