Effects of Ultrasonication and Agitation Milling on Precursor Sol for the Synthesis of Lead Titanate

摘要

Ferroelectric perovskite lead titanate is synthesized from titania sol and lead oxide sol via various precursors. Ultrasonication and milling were performed either separately or simultaneously during precursor preparation. By these treatments, agglomerates were significantly disintegrated, with concomitant mechanochemical incipient reaction toward PbTiO_3. Dispersion state of the product precursor is significantly improved when mechanochemical effects are combined with ultrasonication.