Biphasic tritium breeding ceramics were prepared by the microwave-induced solution combustion (MSCS) method in a single step. The phase ratio of lithium titanate and lithium silicate can be effectively controlled by changing the Si/Ti atom ratios in the aqueous precursor. The combustion process is completed within ∽100 s, and the nano-structure Li₂TiO₃-Li₄SiO₄ ceramic power can be obtained directly after the combustion reaction. This preparation approach is promising for the scale production of tritium breeding ceramics with various chemical compositions. Besides, as Li₄SiO₄ absorbs CO_2, which leads to the formation of Li₂SiO₃ and Li₂CO₃, the powder needs further calcination treatment at 983 – 1023 K. For the ceramic bodies sintered at 1073 K and 1223 K, the Li₂TiO₃-xLi₄SiO₄ (x = 1) ceramic shows high phase stability and small grain size of ∽200 nm. However, for the case of Li₂TiO₃-xLi₄SiO₄ (x = 0.5) ceramic, the Li₄SiO₄ phase is transformed into Li₂TiSiO₅ and Li₂SiO₃ with a lithium loss in sintering process. On the other hand, the evaluation of the tritium migration behavior using the electrochemical workstation is performed. The calculation results show that the lithium diffusion coefficient (D_Li) can reflect the D_tritium for the ceramics with various phase compositions. It is found that the D_tritium is not proportional to the lithium density in the ceramic. The Li₂TiO₃-xLi₄SiO₄ (x = 1) ceramic has a favorable tritium migration behavior than mono-Li₄SiO₄ ceramic.

采用微波诱导溶液燃烧 (MSCS) 方法一步制备双相氚增殖陶瓷。通过改变水性前驱体中的Si/Ti原子比可以有效地控制钛酸锂和硅酸锂的相比。燃烧过程在∽100 s内完成，燃烧反应后可直接获得纳米结构的Li ₂ TiO ₃ -Li ₄ SiO ₄陶瓷粉末。该制备方法有望用于各种化学成分氚育种陶瓷的规模化生产。此外，由于 Li ₄ SiO ₄吸收 CO _2，导致形成 Li ₂ SiO₃和 Li ₂ CO ₃，粉末需要在 983 – 1023 K 下进一步煅烧处理。对于在 1073 K 和 1223 K 下烧结的陶瓷体，Li ₂ TiO ₃ - x Li ₄ SiO ₄ ( x = 1) 陶瓷显示出高相稳定性和∽200 nm的小晶粒尺寸。然而，对于Li ₂ TiO ₃ - x Li ₄ SiO ₄ ( x  = 0.5)陶瓷，Li ₄ SiO ₄相转变为Li ₂ TiSiO ₅和Li ₂SiO ₃在烧结过程中具有锂损失。另一方面，使用电化学工作站对氚迁移行为进行评估。计算结果表明，锂扩散系数（D _Li）可以反映不同相组成陶瓷的D_氚。发现D_氚与陶瓷中的锂密度不成比例。Li ₂ TiO ₃ - x Li ₄ SiO ₄ ( x  = 1) 陶瓷比单Li ₄ SiO ₄具有更好的氚迁移行为 陶瓷制品。