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EFFECT OF $SiO_2-CaO-Cr_2O_3$ ON THE CREEP PROPERTY OF URANIUM DIOXIDE  

RHEE YOUNG WOO (Korea Atomic Energy Research Institute)
KANG KI WON (Korea Atomic Energy Research Institute)
KIM KEON SIK (Korea Atomic Energy Research Institute)
YANG JAE HO (Korea Atomic Energy Research Institute)
KIM JONG HEON (Korea Atomic Energy Research Institute)
SONG KUN WOO (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.37, no.3, 2005 , pp. 287-292 More about this Journal
Abstract
[ $\pi$ ]The effects of silica-based additives have been investigated to improve the creep property of a $UO_2$ pellet. The additive composition, $50wt\%SiO_2-47wt{\%}CaO-3wt\%Cr_2O_3$ (SCC), was selected according to the dihedral angle and the distribution of the second phase. It was observed that the creep rate of the $0.07 wt\%$ SCC-added $UO_2$ was slower than that of the pure $UO_2$. However, the creep rate of the $0.22 wt\%$ SCC-added $UO_2$ was about 3_48 times faster than that of the pure $UO_2$, depending on the applied stress in the lower stress range. In the case of the $0.35 wt\%$ SCC-added $UO_2$, the creep rate decreased in comparison with that of the $0.22 wt\%$ SCC-added $UO_2$. The observed enhancement in the creep rate might depend on a balance between the positive role of the viscous intergranular phase and the negative roles of the additives and the grain growth.
Keywords
Fuel; Creep;
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1 B. Burton, G.L. Reynolds, J.P. Barnes, 'The Influence of Grain Size on the Creep of Uranium Dioxide,' J. Mater. Sci., 8, 1690 (1973)   DOI
2 J.L. Routbort and J.C. Voglewede, 'Creep of MixedOxide Fuel Pellets at High Stress,' J. Am. Ceram. Soc., 56,330 (1973)   DOI
3 W.M. Armstrong, A.R. Causey and W.R. Sturrock, 'Creep of Single-Crystal $UO_2$,' J. Nucl. Mater., 19,42 (1966)   DOI
4 W.M. Armstrong, W.R Irvine and R.H. Martinson, 'Creep Deformation of Stoichiometric Uranium Dioxide,' J. Nucl. Mater., 7, 133 (1962)   DOI
5 Y.K. Bibilashvili, F.G. Reshetnikov, V.V. Novikov, A.V. Medvedev, OV. Milovanov, A.Y. Kuleshov, E.N. Mikheev, V.I. Kuznetsov, V.B. Malygin, K.V. Naboichenko, A.N. Sokolov, V.I. Tokarev and Y.V. Pimenov, 'Development of Low-Strain Resistant Fuel for Power Reactor Fuel Rods,' Proceedings of IAEA Technical Meeting on Improved Fuel Pellet Materials and Designs., pp.297-305, October, 2003, Brussels, Belgium
6 M.S. Seltzer, A.H. Clauer and B.A. Wilcox, 'The Influence of Stoichiometry on Compression Creep of Polycrystalline $UO_{2+x}$,' J. Nucl. Mater., 44. 331 (1972)   DOI
7 M.S. Seltzer, A.H. Clauer and B.A. Wilcox, 'The influence of stoichiometry on compression creep of uranium dioxide single crystals,' J. Nucl. Mater., 44, 43 (1972)   DOI
8 F. Dherbey, F. Louchet, A. Mocellin and S. Leclercq, 'Elevated Temperature Creep of Polycrystalline Uranium Dioxide,' Acta Mater., 50, 1495 (2002)   DOI
9 Levin, E. M., Robbins, C. R. and McMurdie, R. F., Figs. 101,302,651 and 2388 in Phase Diagrams for Ceramists, ed. by M. K. Reser. American Ceramic Society, Columbus, OH, 1964
10 D.B. Knorr, R.M. Cannon and R.L. Coble, 'An Analysis of Diffusion and Duffusional Creep in Stoichiometric and Hyperstoichiometric Uranium Dioxide,' Acta Metal., 37, 2103 (1989)   DOI
11 D.S. Wilkinson, 'Creep Mechanisms in Multiphase Ceramic Materials,' JAm. Ceram. Soc., 81, 275 (1998)   DOI   ScienceOn
12 K.W. Lay, R.S. Rosembaum and J.H. Davis, 'Nuclear Fuel,' US Pat. 4869867 (1989)
13 Ch. Delafoy, P. Blanpain, S. Lansiart, Ph. Dehaudt, G. Chiarelli and R. Castelli, 'Advanced PWR Fuels for High Burn-up Extension and PCI Constraint Elimination,' Proceedings of IAEA Technical Meeting on Improved Fuel Pellet Materials and Designs., pp. 163-173, October, 2003, Brussels, Belgium
14 A.A. Solomon, C.S. Yust and N.H. Packan, 'Primary Creep of $UO_2$ and the Effect of Amorphous Grain Boundary Phases,' J. Nucl. Mater., 110, 333 (1982)   DOI
15 K.W. Lay, H.S. Rosembaum, J.H. Davis and M.O. Marlowe, 'Nuclear Fuel,' US Pat. 4869866 (1989)
16 K.W. Kang, J.H. Yang, K.S. Kim, J.H. Kim and K.W. Song, 'Effect of Additives on Creep Property of $UO_2$ Pellet,' Proceedings of the Kor. Nucl. Soc., Spring Meeting, May 2001
17 T.E. Chung and T.J. Davies, 'The Superplastic Creep of Uranium Dioxide,' J. Nucl. Mater., 79,143 (1979)   DOI
18 W.M. Armstrong and W.R Irvine, 'Creep of Urania Base Solid Solutions,' J. Nucl. Mater., 12, 261 (1964)   DOI