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MOLDING MIXTURE FOR THE ADDITION TO FUEL FUEL PARTICLES, METHOD FOR THE PRODUCTION OF NUCLEAR FUEL ELEMENTS AND FUEL ELEMENTS PRODUCED BY THIS PROCESS.
MOLDING MIXTURE FOR THE ADDITION TO FUEL FUEL PARTICLES, METHOD FOR THE PRODUCTION OF NUCLEAR FUEL ELEMENTS AND FUEL ELEMENTS PRODUCED BY THIS PROCESS.
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机译:用于添加燃料颗粒的混合料,用于生产核燃料元素的方法以及通过该方法生产的燃料元素。
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摘要
Particulate nuclear fuel material, particulate carbon and pitch are combined with an additive which is effective to reduce the coke yield upon carbonization to mold a green fuel body. The additive may be polystyrene, a styrene-butadiene copolymer, an aromatic hydrocarbon having a molecular weight between about 75 and 300 or a saturated hydrocarbon polymer. The green fuel body is inserted in a complementary cavity within a porous nuclear fuel element body and heated in situ to decompose the pitch and additive, leaving a relatively close-fitting fuel body in the cavity.
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