PZT FERROELECTRIC-FILMS OBTAINED FROM METAL ALKOXIDES BY SOL-GEL PROCESSING

Reaction of Pb(CH3COO)(2) . 3H(2)O with acetic anhydride was shown to be the most convenient method for mild dehydration of this compound, w hich makes it possible to avoid decomposition of lead acetate and to s tabilize precursor solutions in sol-gel technology Anodic dissolution of titanium and zirconium in methylcellosolve substantially simplifies preparation of precursor solutions. X-ray diffraction analysis, scann ing elecrton microscopy, and electrical measurements show that the int roduction of 10 mol % excess Pb into the precursor solution ensures co mpensation for PbO evaporation during high-temperature firing.