A facile approach to fabricate Li4SiO4 ceramic pebbles as tritium breeding materials

作者：Gong Yichao; Yu Xiaohe; Yang Mao; Wei Jianjun; Shi Yanli; Huang Zhangyi; Lu Tiecheng^*; Huang Wanxia

来源：Materials Letters, 2015, 159: 245-248.

DOI：10.1016/j.matlet.2015.06.108

• Nuclear materials
• Ceramic
• Tritium breeder
• Li4SiO4 pebbles

The hydrothermal method was first employed to synthesize the precursor powders for fabricating the Li4SiO4 ceramic pebbles. Compared with the sol-gel method, the precursor powders synthesized by hydrothermal process are much more homogeneous and have smaller grain size, which is helpful to obtain Li4SiO4 pebbles with small grain size. Li4SiO4 pebbles were obtained by sintering the green bodies of pebbles at 800 degrees C for 4 h. The experimental results show that the Li4SiO4 pebbles have high phase purity, abundant pore structure, small grain size (a.v 0.67 mu m) and high crush load (a.v 38.7 N). It indicates that the Li4SiO4 pebbles are expected to show favorable tritium release behavior and thus may be promising tritium breeding materials for fusion reactor blanket. 2015 Elsevier B.V.

• 出版日期2015-11-15
• 单位四川大学