Nuclear fuel component
专利汇可以提供Nuclear fuel component专利检索，专利查询，专利分析的服务。并且PURPOSE: To reduce the discharge of nuclear fission product and to prevent a crack of the covered tube caused by stress and corrosion by making the uranium-oxygen ratio (O/U) of chemical composition of uranium pellet present in the range from 1.94 to 1.99.
CONSTITUTION: UO
2 pellet is a relatively inert substance even at high temperature and has a considerably wide non-stoichiometric range (UO
2 -X, UO
2 +X). When the nuclear fission product yielded in the UO
2 pellet is discharged out of the pellet in the diffusion process and the chemical composition of pellet is UO
2 -X, the probability that the product is trapped in the space lattice of oxygen is made greater, and the discharge rate of nuclear fission product from the fuel pellet is made less. Therefore the covered tube made by zirconium alloy can be prevented from a crack caused by stress and corrosion by loading the fuel pellet in which the O/U ratio is selected in the range from 1.94 to 1.99.
COPYRIGHT: (C)1979,JPO&Japio，下面是Nuclear fuel component专利的具体信息内容。
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1 热控制装置
