Irradiation-induced densification of UO2 pellet fuel

Abstract The results of this experimental study to elucidate the effects of microstructure and irradiation conditions on irradiation-induced densification of UO 2 pellet fuel show that sintered UO 2 pellets with specific ranges of microstructural characteristics are stable with respect to densification. The largest in-reactor density changes occurred for those fuel types having a combination of the smallest pore size, the largest percent of porosity

[1]  M.C.J. Carlson.  Densification in Mixed Oxide Fuel during Fast Reactor Irradiation , 1974 .

[2]  J. Rich,et al.  Grain-boundary gas release and swelling in high burn-up uranium dioxide , 1969 .

[3]  H. Stehle,et al.  The dependence of in-reactor UO2 densification on temperature and microstructure , 1974 .

[4]  J. Turnbull,et al.  Observations demonstrating the re-solution of gas from bubbles and sintering pores during the irradiation of UO2 at a high temperature , 1970 .

[5]  J. B. Ainscough,et al.  Isothermal grain growth kinetics in sintered UO2 pellets , 1973 .

[6]  H. Matzke,et al.  Fission-enhanced self-diffusion of uranium in UO2 and UC , 1973 .

[7]  W. L. Nicholson,et al.  Estimation of linear properties of particle size distributions , 1970 .

[8]  R. Coble.  Sintering Crystalline Solids. II. Experimental Test of Diffusion Models in Powder Compacts , 1961 .

[9]  R. L. Coble,et al.  Sintering Crystalline Solids. I. Intermediate and Final State Diffusion Models , 1961 .

[10]  H. Stehle,et al.  Uranium dioxide properties for LWR fuel rods , 1975 .

[11]  S. Macewen,et al.  A model for in-reactor densification of UO2 , 1975 .

[12]  D. A. Banks.  Some observations of density and porosity changes in UO2 fuel irradiated in water-cooled reactors , 1974 .

[13]  J. Turnbull,et al.  The re-solution of gas atoms from bubbles during the irradiation of UO2 , 1970 .

[14]  Mel I. Mendelson,et al.  Average Grain Size in Polycrystalline Ceramics , 1969 .

[15]  G. R. Kilp,et al.  The Influence of Fuel Microstructure on In-Pile Densification , 1974 .

[16]  A. Boss.  Irradiation behaviour of fission-gas bubbles and sintering pores in UO2 , 1969 .