Preparation and Dielectric Properties of Li2ZnTi3O8 Nanoparticles by Sol-gel Method

A surfactant assisted sol-gel process was adopted to synthesize Li2ZnTi3O8 nanoparticles, which was then used to prepare dielectric ceramics. The phase composition, particle morphology and size distribution of the nanoparticles were characterized by XRD and TEM, respectively. The crystalline phases and microstructure of the ceramics were also determined by XRD and SEM, respectively. The effect of nanoparticles on the sintering behavior and microwave dielectric properties of the ceramics was also investigated. The obtained Li2ZnTi3O8 nanoparticles have an average particle size of 40 similar to 70 nm and narrow distribution. Well -densified Li2ZnTi3O8 ceramics can be prepared from as synthesized nanoparticles at lower sintering temperature of 950 degrees C and they obtain good dielectric properties (epsilon(r) = 25.12 and Q x f = 47,069 GHz). The Li2ZnTi3O8 ceramics synthesized by the sol-gel method are candidates for low temperature co-firing ceramics application.