Synthesis of the biphasic mixture of Li2TiO3-Li4SiO4 and its irradiation performance

Triphasic Li2TiO3-Li2SiO3-Li4SiO4 powders were synthesized by the ultrasonic-assisted solution combustion method. The triphasic Li2TiO3-Li2SiO3-Li4SiO4 composites can be further transformed into biphasic Li2TiO3-Li4SiO4 ceramics via the phase transformation of Li2SiO3 into Li4SiO4 at a temperature of 900 °C for 2 h in air. The phase, microstructure, and irradiation behavior of biphasic composites were investigated. The average ceramic grain size is about 0.4 μm. Irradiation defects in the biphasic Li2TiO3-Li4SiO4 ceramics were calculated by SRIM software package. The largest displacement damage is 47.14 dpa under 100 keV Ar ion implantation. Observation of the surface and cross-section morphologies reveals that crystallinity of composite ceramics decreases after irradiated. However, the elements compositions are not affected by Ar ion implantation.