CAJ | 학술논문

推导出了一个相干扩散方程用来研究核燃料边缘位置处氙原子沿着位错线的运动规律,并给出了促使其扩散的微观物理机制,研究了氙气泡在材料中的生长受限行为.利用这种含时的有限扩散技术,可以数值计算张力相干扩散过程,进而给出氙原子沿着位错线的扩散性质.结果表明:氙原子沿着位错线的运动是随着驱动能线性变化的,同时,给出了燃料中边缘位置氙气泡无法长大的物理原因.
추도출료일개상간확산방정용래연구핵연료변연위치처선원자연착위착선적운동규률,병급출료촉사기확산적미관물리궤제,연구료선기포재재료중적생장수한행위.이용저충함시적유한확산기술,가이수치계산장력상간확산과정,진이급출선원자연착위착선적확산성질.결과표명:선원자연착위착선적운동시수착구동능선성변화적,동시,급출료연료중변연위치선기포무법장대적물리원인.
We give a coherent diffuse equation to study the behaviors of Xenon atom along the dislocation and the Xenon bubble movement mechanism in the UO2 nuclear Fuel boundary, at the same time, we study the Xenon bubble growth behavior. By using a time-dependent finite-difference technique, we can numerically solve stress coherence diffuse equation and study the transfer properties of Xenon along the dislocation. Our numerical results show that the transport of the xenon atom along dislocation is linear change with the external driven energy, and we give the reason of the growth limit of xenon bubble.