Flash Sintering Effect on PMN-PT Ceramics

Densification of PMN-PT piezoelectric ceramic powder is carried out by electric field assisted/flash sintering method. The composition selected in materials system 0.67[Pb(Mg1/3Nb2/3)O3]−0.33(PbTiO3). During flash experiment, 200 V/mm applied on sample with 0.1 amp current cutoff value. Flash accomplished less than 90 sec at ~700 °C. Relative density for sintered measured approximately 94 % which reasonable value comparing literature. SEM microstructure illustration exhibits proper consolidation morphology agreement the relative measurement. According to XRD analysis, said shows consistency rhombohedral perovskite crystal structure and preserve its chemical physical during whole experimental cycle. By technique, temperature decreased from 1200 °C 700 along a decrement time 2 hours seconds. properly produced method first respect open Hence, this densification will gain importance reduce toxic Pb emission aroused high processes.