
不同U3Si2含量的复合燃料芯块的硬度变化如图所示,测试结果表明,随着U3Si2含量的增加波动幅度较大,UN/U3Si2(10wt%)的硬度值大约在7~8GPa,而UN/U3Si2(40wt%)的硬度值大约在7.5~10GPa,随着U3Si2 含量的增加复合芯块的硬度略微有上涨的趋势。
The hardness change of composite fuel pellets with different U3Si2 content is shown in the figure. The results show that the hardness of the UN/U3Si2 composite fuel fluctuates greatly with the U3Si2 content. The hardness of UN/U3Si2(10wt%) composite pellet is about 7~8GPa, while that of UN/U3Si2(40wt%) composite pellet is about 7.5~10GPa. With the increase of U3Si2 content, the hardness of composite pellets slightly increases.