MgO fully-stable ZrO2-based Gd-containing burnable poison material, preparation method thereof and burnable poison pellet

The invention discloses an MgO fully-stable ZrO2-based Gd-containing burnable poison material which comprises the following chemical components: 3-6 wt% of magnesium oxide, 0.5-20 wt% of gadolinium oxide, 0-10 wt% of calcium oxide, 0-5 wt% of silicon oxide, 0-5 wt% of aluminum oxide and the balance of zirconium oxide. The invention also discloses a burnable poison material pellet and a preparation method of the MgO fully-stable ZrO2-based Gd-containing burnable poison material. The burnable poison material and the burnable poison pellet are good in stability, low in cost, good in economical efficiency and resistant to low-temperature aging. The method is easy to operate, high in efficiency and environmentally friendly. 本发明公开一种MgO全稳定ZrO2基含Gd可燃毒物材料，包括以下化学组成：氧化镁3～6wt％，氧化钆0.5～20wt％，氧化钙0～10wt％，氧化硅0～5wt％，氧化铝0～5wt％，其余为氧化锆。本发明还公开一种可燃毒物材料芯块以及MgO全稳定ZrO2基含Gd可燃毒物材料的制备方法。本发明的可燃毒物材料及可燃毒物芯块稳定性好，成本低，经济性好，并且可抗低温老化，本发明的方法操作简单，效率高，对环境友好。