Title :
The DC field dependence of the piezoelectric, elastic and dielectric constants for a lead zirconate-based ceramic
Author :
Alberta, E.F. ; Taylor, D.J. ; Bhalla, A.S. ; Takenaka, T.
Author_Institution :
Pennsylvania State Univ., University Park, PA, USA
fDate :
30 Aug-2 Sep 1992
Abstract :
Previous work on the solid solution x.PbZrO3[PZ]-y. Pb(Zn1/3Nb2/3)O3 [PZN]-z.PbTiO3 [PT] (PZNT) has shown a DC-field-induced ferroelectric-antiferroelectric (AF-FE) transition. The authors explore the electrical field dependence of the elastic constant (sE 11), piezoelectric coefficient (d31), and dielectric constant (K33) near this phase transition. Hysteresis results indicate that the location of the AF-FE boundary is between x=92.8% and x=93.2% PZ. Room-temperature dielectric constants near 250 have been measured and can be altered with suitable compositional adjustments. The PZZN phase diagram (PZNT with 0 mol.% PT) has been refined, showing that the AF-FE boundary at room temperature is PZZN(93.2) and PZZN(93.0)
Keywords :
ceramics; dielectric hysteresis; dielectric polarisation; elastic constants; ferroelectric transitions; lead compounds; permittivity; phase diagrams; piezoelectric materials; solid solutions; AF-FE boundary; DC field dependence; PZNT; PZZN phase diagram; PbZrO3-PbZnO3-NbO3-PbTiO3 ; ceramic; dielectric constants; elastic constants; ferroelectric-antiferroelectric transition; hysteresis; phase transition; piezoelectric coefficient; piezoelectric constants; remnant polarisation; solid solution; Ceramics; Dielectric constant; Dielectric materials; Dielectric measurements; Equations; Ferroelectric materials; Intelligent sensors; Pyroelectricity; Solids; Temperature;
Conference_Titel :
Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on
Conference_Location :
Greenville, SC
Print_ISBN :
0-7803-0465-9
DOI :
10.1109/ISAF.1992.300565
