Analysis of structural, thermal and dielectric properties of LiTi2(PO4)3 ceramic powders

Lithium titanium phosphate (LiTi2(PO4)3) ceramic powders have been prepared by a solid state reaction method at five different temperatures (800 °C, 900 °C, 1000 °C, 1100 °C and 1200 °C for 5 h each). The XRD profiles have shown that the sample sintered at 1100 °C (optimized) has displayed well-defined features. XRD peaks are in good agreement with the JCPDS Card No. 35-0754 confirming the rhombohedral   structure in a space group of R3¯c. The SEM images of the five samples sintered have been examined. EDAX and Raman spectra have been obtained for the LiTi2(PO4)3 ceramic powder sintered at 1100 °C for analysis. Thermal properties for the as prepared precursor LiTi2(PO4)3 sample, have been analyzed from the TG-DTA profiles. Besides this, dielectric constant, dielectric loss and conductivities (σac and σdc) have also been studied for the LiTi2(PO4)3 ceramic powder.