Processing and characterization of <001>-textured Pb(Mg1/3Nb2/3)O3-Pb(Yb1/2Nb1/2)O3-PbTiO3 ceramics

Duran C. , Cengiz S., Ecebas N., Dursun S., AKÇA E.

Journal of Materials Research, vol.32, no.13, pp.2471-2478, 2017 (Journal Indexed in SCI Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 13
  • Publication Date: 2017
  • Doi Number: 10.1557/jmr.2017.192
  • Title of Journal : Journal of Materials Research
  • Page Numbers: pp.2471-2478


0.62[0.75(Pb(Mg1/3Nb2/3)O-3)-0.25(Pb(Yb1/2Nb1/2)O-3)]-0.38(PbTiO3) ceramics were successfully textured in [001] via the template grain growth method using 1-7 vol% platelike BaTiO3 (BT) templated (the Lotgering factor of 0.91 at 5 vol% BT). Dielectric spectra indicated a normal ferroelectric behavior without any frequency dispersion and no low-temperature phase transition. The chemically stable BT phase within the matrix gave rise to a composite effect and its relatively inferior properties affected the dielectric and electromechanical properties. The lower T-C of the BT decreased the Curie temperature from 226 to 213 degrees C (with a depolarization temperature of 204 degrees C). Significantly higher levels of strain (0.33%), narrower hysteresis level (7.7%), higher piezoelectric strain coefficient (660 pm/V), and low-field (<5 kV/cm) piezoelectric strain coefficient (1340 pm/V) at 50 kV/cm were achieved at 5 vol% BT addition. These results are very promising for the fabrication of high performance transducer and actuator applications without severe temperature limitations.