Title :
Dielectric, piezoelectric and strain properties of PMW-PNN-PZT
Author :
Yoon, K.H. ; Yoo, J.H. ; Min, S.-K. ; Lee, S.-H. ; Hong, J.I. ; Park, C.Y.
Author_Institution :
Dept. of Electr. Eng., Semyung Univ., Chungbuk, South Korea
Abstract :
In this paper, the structural, dielectric, piezoelectric and strain properties of Pb[(Mg1/2W1/2)x-(Ni1/3Nb 2/3)0.15-x-(Zr0 .5Ti0.5 )0.85]O3 (X-0-0~0.10) ceramics were investigated with the substitution of Pb(Mg1/2W1/2)O3. According to the increase of the substitution amount of Pb(Mg1/2W1/2)O3, Curie temperatures and coercive fields were decreased by the decrease of the tetragonality. Up to the substitution amount of Pb(Mg1/2W1/2)O3 3 mol%, remnant polarization, dielectric constant and piezoelectric constant were increased. When the substitution amount of Pb(Mg1/2W1/2)O3 was 3 mol%, the dielectric constant and electromechanical coupling factor, kp, k31, showed the highest value of 2230, 0.64 and 038, respectively. Also, the piezoelectric constant was the largest value of 418, 202 (×10-12 C/N), respectively. The strain induced by AC electric field (60 Hz) was increased with the increase of the substitution amount of Pb(Mg/2W/2)O3
Keywords :
ferroelectric Curie temperature; ferroelectric ceramics; lead compounds; permittivity; piezoceramics; 60 Hz; Curie temperature; PMW-PNN-PZT ceramic; PbMgWO3-PbNiNbO3-PbZrO3TiO3; PbMgWO3-PbNiNbO3-PZT; chemical substitution; coercive field; dielectric constant; dielectric properties; electromechanical coupling factor; piezoelectric constant; piezoelectric properties; remnant polarization; strain properties; structural properties; Capacitive sensors; Ceramics; Dielectric constant; Dielectric materials; Dielectric measurements; Educational institutions; Piezoelectric actuators; Powders; Strain measurement; 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.2000.941606
