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Non lead piezoelectric materials with two compositions from the (BiNa)TiO3-(BiK)TiO3 -BaTiO3 system and one composition from the (KNa)NbO3-LiTaO3 system were synthesized using the mixed oxide technique. Piezoelectric and dielectric properties of bulk ceramics were measured and their sensitivity to moisture and poling conditions were compared to determine the optimum composition for thick film processing...
The potential of eliminating lead-based materials is gaining momentum in Europe, resulting in a search to replace PZT ceramics with comparable alternatives. Compositions based on the KNN and BNBK families have been reported to possess properties near PZT, and a comparison of the properties is given. Single element transducers operating at 5 MHz have been modeled and made using both compositions and...
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