Piezoelectric enhancement of relaxor-based lead-free piezoelectric ceramics by nanodomain engineering

Ichiro Fujii, Ryuta Mitsui, Kouichi Nakashima, Nobuhiro Kumada, Satoshi Wada, Hisato Yabuta, Mikio Shimada, Takayuki Watanabe, Kaoru Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

0.3BaTiO 3-0.1Bi(Mg 1/2Ti 1/2)O 3-0.6BiFeO 3 ceramics were either doped with vanadium or sintered in calcined powder with the same composition. Compared to an undoped ceramic sintered without the calcined powder, both ceramics showed reduced leakage current densities (lower than 1 x 10 -7 A/cm 2) and absence of dielectric relaxation behaviors observed in frequency-and temperature-dependent dielectric measurements. The Curie temperatures of both samples were higher than 460°C. The maximum field-induced strain over the applied field, S max/E max, of 366 pm/V of the undoped ceramic sintered without the calcined powder increased to 455 and 799 pm/V for the V-doped sample and the sample sintered with the calcined powder, respectively. The increase was related to a reduced concentration of bismuth vacancy - oxygen vacancy defect dipoles.

Original languageEnglish
Title of host publicationProc. of 2012 21st IEEE International Symposium on Applications of Ferroelectrics Held Jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE, ISAF/ECAPD/PFM 2012
DOIs
Publication statusPublished - Oct 31 2012
Event2012 21st IEEE Int. Symp. on Applications of Ferroelectrics Held with 11th IEEE European Conf. on Applications of Polar Dielectrics and 4th IEEE Int. Symp on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/ECAPD/PFM - Aveiro, Portugal
Duration: Jul 9 2012Jul 13 2012

Publication series

NameProceedings of 2012 21st IEEE Int. Symp. on Applications of Ferroelectrics held jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE PFM, ISAF/ECAPD/PFM 2012

Other

Other2012 21st IEEE Int. Symp. on Applications of Ferroelectrics Held with 11th IEEE European Conf. on Applications of Polar Dielectrics and 4th IEEE Int. Symp on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/ECAPD/PFM
CountryPortugal
CityAveiro
Period7/9/127/13/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Piezoelectric enhancement of relaxor-based lead-free piezoelectric ceramics by nanodomain engineering'. Together they form a unique fingerprint.

  • Cite this

    Fujii, I., Mitsui, R., Nakashima, K., Kumada, N., Wada, S., Yabuta, H., Shimada, M., Watanabe, T., & Miura, K. (2012). Piezoelectric enhancement of relaxor-based lead-free piezoelectric ceramics by nanodomain engineering. In Proc. of 2012 21st IEEE International Symposium on Applications of Ferroelectrics Held Jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE, ISAF/ECAPD/PFM 2012 [6297767] (Proceedings of 2012 21st IEEE Int. Symp. on Applications of Ferroelectrics held jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE PFM, ISAF/ECAPD/PFM 2012). https://doi.org/10.1109/ISAF.2012.6297767