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Nuclear fuel rod with burnable plate and pellet-clad interaction fix
Nuclear fuel rod with burnable plate and pellet-clad interaction fix
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机译:带有可燃板的核燃料棒和包覆颗粒的相互作用固定装置
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摘要
An improved nuclear fuel rod comprising a tubular metallic cladding containing a plurality of nuclear fuel pellets has a plurality of ceramic wafers therein, each of which wafers being disposed between a major portion of adjacent fuel pellets. The ceramic wafers are formed from a sintered mixture of natural or depleted uranium dioxide and 1-8 percent by weight gadolinium oxide. The wafers are of a diameter substantially the same as that of the fuel pellets and have a thickness of between 10- 100 mils. The wafers freeze out harmful fission products released by the fuel pellets and minimize or prevent pellet-clad interaction failures, while also providing flexibility in power shaping in the reactor system.
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