Structure property relations of chemically synthesized nanocrystalline PZT powders

Nanocrystalline (1–100 nm) materials can be generated by a variety of different chemical synthesis routes. The present investigation deals with the improvement of electrical properties (dielectric) through nanocrystalline PZT materials. Chemical routes have prepared nanocrystalline (grain size 20–100 nm) PZT powders as well as large grained (190–480 nm) with Zr/Ti ratio of 60/40 at different temperatures having the average crystallite sizes 8–18 nm. It was observed that dielectric constant after sintering different nanocrystalline PZT systems attains very high value (∼10,000–12,000) in comparison to large grained materials (5000–7000). It was observed that dielectric property increases with decreasing particle size of the nanocrystalline powders.