PROCESS FOR CODEPOSITION OF REAGENTS FOR THE PREPARATION OF PIEZOELECTRIC MATERIALS BASED ON LEAD ZIRCONATE TITANATE

摘要

The invention relates to the production of piezoceramic materials (PCM) based on lead zirconate-titanate (LZT), used in different branches of radioelectronics, electrical technology and acoustics. The process for codeposition of reagents for the preparation of PCM based on LZT comprises contacting of sprayed solutions of reagents with precipitator, pressing the suspension, washing of sediment, drying, and thermal treatment of powder. Due to the invention, the precipitator is sprayed simultaneously with reagents, and their contacting is carried out in dispersed phase, in addition spraying of reagents and precipitator is carried out with the help of ultrasound. The invention provides the increasing of sedimentation velocity and sediment washing, decreasing of expenses of distilled water, improvement of electrophysical characteristics of products.