Crystal size effect on the compressibility of nano-crystalline uranium dioxide
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.
ZVORISTE Carmen Elena;
HEATHMAN Stephen;
JOVANI-ABRIL Raquel;
SPINO Jose Luis;
JANSSEN Arne;
CACIUFFO Roberto;
2013-05-14
ELSEVIER SCIENCE BV
JRC73279
0022-3115,
http://www.sciencedirect.com/science/article/pii/S0022311512006691,
https://publications.jrc.ec.europa.eu/repository/handle/JRC73279,
10.1016/j.jnucmat.2012.12.012,
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