The results of studies of the behavior of uranium-erbium fuel pellets during identical repeated heat tests with analysis of the changes of the microstructure, density, geometric dimensions, and resinterability are presented. It is shown that depending on quality some pellets break down in the course of these tests while others remain whole and swell or densify and decrease in size. It was determined that the pellets break down because the erbium oxide distribution in the molding powder and the pellets is nonuniform. Adjustment of the process regime eliminated pellet breakdown during cyclic heat treatment.
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References
V. V. Gorskii, “Improvement of uranium fuel for light-water reactors,” At. Tekh. Rubezh., No. 5, 3–12 (2000).
I. S. Golovin and V. V. Novikov, “Serviceability of fuel elements with a change of power of thermal power reactors.” ibid., No. 3, 1–13 (1984).
G. Maier, H. Assman, and W. Dörr, “Resinter testing in relation to in-pile densification,” J. Nucl. Mater., 153, 213–224 (1988).
An Acceptable Model and Related Statistical Methods for the Analysis of Fuel Densification, US Regulatory Commission, Regulatory Guide 1.126 (1989).
V. V. Basov, “Determination of the thermal stability characteristics of type R, R–E, V fuel pellets,” Technological Instruction No. 25006.00005, Machine-Building Works, Elektrostal (1999).
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Translated from Atomnaya Énergiya, Vol. 107, No. 4, pp. 221–224, October, 2009.
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Petrov, I.V., Basov, V.V. Behavior of uranium-erbium oxide fuel pellets during cyclic heat treatment. At Energy 107, 272–276 (2009). https://doi.org/10.1007/s10512-010-9225-z
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DOI: https://doi.org/10.1007/s10512-010-9225-z