Preparation and Properties of Bi0.5Na0.5TiO3-Ba (Hf,Ti)TiO3 Lead-Free Piezoelectric Ceramics

@article{Tian2007PreparationAP,
  title={Preparation and Properties of Bi0.5Na0.5TiO3-Ba (Hf,Ti)TiO3 Lead-Free Piezoelectric Ceramics},
  author={Hu Yong Tian and Wan Ping Chen and Danyang Wang and Y. Wang and Jiang Tao Zeng and Helen L. W. Chan},
  journal={Key Engineering Materials},
  year={2007},
  volume={334-335},
  pages={957 - 960}
}
  • Hu Yong Tian, Wan Ping Chen, +3 authors Helen L. W. Chan
  • Published 2007
  • Materials Science
  • Key Engineering Materials
  • Lead-free piezoelectric ceramics based on bismuth sodium titanate (BNT) -barium hafnate titanate (BHT) were prepared by a two-step synthesis process. The final BNT-BHT ceramics sintered at 1180oC for 2 h in air showed a perovskite structure with high density. The morphotropic phase boundaries (MPB) were found in BNT based piezoelectric ceramics with 8~10 wt% BHT in composites. In the case of Bi0.5Na0.5TiO3-0.08BaHf0.05Ti0.95O3 ceramics, a maximum piezoelectric coefficient d33 of 122.6 pC/N was… CONTINUE READING

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