Modeling of stoichiometric uranium dioxide grain growth during isothermal sintering
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 1 (2014), pp. 61-70
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The process of stoichiometric uranium dioxide grain growth during isothermal sintering is considered. A threedimensional $\mathrm{UO}_2$ grain growth model based on physical concepts described in the article was developed. This model allows one to estimate the influence of pores carried by grain boundaries on uranium dioxide grain growth kinetic by taking into account the mass transfer caused by surface diffusion, evaporation, condensation, initial particle size distribution, and its evolution. Analytical equations used in this model allow one to simplify the calculation structure. This simplification reduces the calculation time and provides an ability to solve such practical problems as influence of the processing method on evolution of the average grain size in a pellet. The grain growth model was verified according to available experimental data.
Keywords:
uranium dioxide, grain growth, model, average grain size, porosity.
@article{VTGU_2014_1_a5,
author = {O. A. Bakhteev and A. V. Lysikov and E. N. Mikheev},
title = {Modeling of stoichiometric uranium dioxide grain growth during isothermal sintering},
journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
pages = {61--70},
publisher = {mathdoc},
number = {1},
year = {2014},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/VTGU_2014_1_a5/}
}
TY - JOUR AU - O. A. Bakhteev AU - A. V. Lysikov AU - E. N. Mikheev TI - Modeling of stoichiometric uranium dioxide grain growth during isothermal sintering JO - Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika PY - 2014 SP - 61 EP - 70 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VTGU_2014_1_a5/ LA - ru ID - VTGU_2014_1_a5 ER -
%0 Journal Article %A O. A. Bakhteev %A A. V. Lysikov %A E. N. Mikheev %T Modeling of stoichiometric uranium dioxide grain growth during isothermal sintering %J Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika %D 2014 %P 61-70 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTGU_2014_1_a5/ %G ru %F VTGU_2014_1_a5
O. A. Bakhteev; A. V. Lysikov; E. N. Mikheev. Modeling of stoichiometric uranium dioxide grain growth during isothermal sintering. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 1 (2014), pp. 61-70. http://geodesic.mathdoc.fr/item/VTGU_2014_1_a5/