Structure, ferroelectric and mechanical performance of polycrystalline gadolinium-doped lead lanthanum zirconate titanate ceramics

S. F. Mansour, A. M. Eid, L. Abd El-Latif, M. M. Rashad, Stephen Ducharme, M. Afifi, J. A. Turner

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

1 Scopus citations

Abstract

Gadolinium-doped lead lanthanum zirconate titanate (Pb0.94-xGdxLa0.06)(Zr0.52Ti0.48)O3: PLGZT ceramics with x= 0, 2, 4, 6, and 8% have been successfully fabricated using a sol-gel auto-combustion method. Pure perovskite PLGZT was acquired for the powder calcined at 850 °C for 3h. In addition, the manipulation of Gd3+-substituted PLZT on the microstructure, ferroelectric and mechanical properties was systematically considered. We have executed a deep structural analysis of X-ray powder diffraction data of PLGZT near the morphotropic phase boundary (MPB). The tetragonal and rhombohedral phases were found to coexist at room temperature. The remanent polarization Pr and coercive field Ec were calculated from the polarization hysteresis loops. The elastic constants were determined for the samples by ultrasonic wave propagation to determine the elastic behavior of the dopant on the PLZT matrix. The results showed that Gd doping in the A-site of the ABO3 perovskite system improves the hysteresis behavior. In the same manner, Gd doping was seen to enhance the mechanical properties.

Original languageEnglish (US)
Title of host publication2017 Joint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017 - Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages63-67
Number of pages5
ISBN (Electronic)9781509047376
DOIs
StatePublished - Aug 1 2017
EventJoint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017 - Atlanta, United States
Duration: May 7 2017May 11 2017

Publication series

Name2017 Joint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017 - Conference

Other

OtherJoint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017
CountryUnited States
CityAtlanta
Period5/7/175/11/17

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Keywords

  • PLZT
  • Sol-gel processes
  • mechanical properties

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

Mansour, S. F., Eid, A. M., El-Latif, L. A., Rashad, M. M., Ducharme, S., Afifi, M., & Turner, J. A. (2017). Structure, ferroelectric and mechanical performance of polycrystalline gadolinium-doped lead lanthanum zirconate titanate ceramics. In 2017 Joint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017 - Conference (pp. 63-67). [8000213] (2017 Joint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017 - Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISAF.2017.8000213