Title :
Processing and electrical properties of Pb(Yb1/2Nb1/2)-PbTiO3 ceramics at the morphotropic phase boundary
Author :
Duran, Cihangir ; Trolier-McKinstry, Susan ; Messing, Gary L.
Author_Institution :
Dept. of Mater. Sci. & Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Pb(Yb1/2Nb1/2)-PbTiO3 (PYbN-PT) ceramics at the MPB composition (50:50) with a relative density ⩾98% were reactively sintered. The ceramic had a remanent polarization of 40 μC/cm2, a maximum dielectric constant of 23,000 at Tc =363°C, and a piezoelectric charge coefficient, d33, of 472 pC/N. These values are higher than the conventionally sintered samples reported in the literature, which makes reactive sintering an attractive process for fabricating PYbN-PT
Keywords :
X-ray diffraction; antiferroelectric materials; dielectric polarisation; ferroelectric Curie temperature; ferroelectric ceramics; ferroelectric transitions; lead compounds; permittivity; powder technology; sintering; 363 C; Curie temperature; Pb(YbNb)O3-PbTiO3; XRD; antiferroelectric phase; dielectric constant; dielectric properties; ferroelectric phase; morphotropic phase boundary; phase formation; piezoelectric charge coefficient; piezoelectric properties; reactively sintered ceramics; relaxor ferroelectric; remanent polarization; sintering conditions; Calcination; Ceramics; Dielectric constant; Dielectric loss measurement; Dielectric measurements; Ethanol; Loss measurement; Niobium; Powders; Temperature;
Conference_Titel :
Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-5940-2
DOI :
10.1109/ISAF.2000.941583
