Synthesis of 0.94 Na0.5Bi0.5TiO3 – 0.06 BaTiO3 (NBT-6BT) lead-free piezoelectric powder suitable for aerosol deposition (AD)

The present work is devoted to the synthesis of 0.94 (Na0.5Bi0.5)TiO3 – 0.06 (BaTiO3) powders by solid-state reaction, suitable for Aerosol Deposition method (AD). were synthetized using Na2CO3, Bi2O3, BaCO3 and TiO2. raw simultaneously milled/mixed attrition milling in water. Two routes studied, differing order introduction materials, three calcination temperatures. first route (S1) led occurrence Bi2Ti2O7 pyrochlore secondary phase. Attempts suppress this phase annealing unsuccessful. second (S2) gave no large grain size obtained at 950 °C 1050 are not sintering or AD. However, process carried out 850 resulted both AD method. ferroelectric piezoelectric properties ceramic samples these similar best-reported ones. Finally, we successfully used