THE PRODUCTION OF PIEZOELECTRIC MATERIALS

Abstract

In the present work, various synthesis routes are applied for the fabrication of bulk PZT ceramics. Firstly, the Solid-State Reaction route is adapted witeither one or two stages. Secondly, Sol-Gel route using two selected solvents, Ethylene Glycol Monomethyle Ether, and, Acetic acid are used. The results indicated that, the preparation of stoichiometric composition without excess PbO of PZT ceramics by One-Stage Solid-State Reaction requires a high processing temperatures to form the PZT ceramics. In the Two-Stage Solid-State Reaction route a lower processing temperatures is proven to be required to form PZT materials. This temperature is lower than that one used in the previous method by I 00- 200°C. In the route of using acetic acid as a solvent is observed to produce the best structure and consequently the best electrical properties of PZT ceramics produced by the previous routes.