Title :
Effect of barium doping on the field-induced piezoelectric properties of Pb(Mg1/3Nb2/3)O3-PbTiO 3 ceramics
Author :
Huebner, Wayne ; Ciardullo, Dan ; Xue, Wanrong ; Lu, Pei Wen
Author_Institution :
Dept. of Ceramic Eng., Missouri Univ., Rolla, MO, USA
Abstract :
The objective of this research was to characterize the dielectric and induced piezoelectric properties of Ba2+-doped, 0.87Pb(Mg 1/3Nb2/3)O3-0.13PbTiO3 relaxor ferroelectrics. The induced kt´s measured at 25°C depended strongly on the Ba2+ amount and electric field, maximizing at a value of 0.59 for an applied field of 5 kV/cm and a 2% doping level. The corresponding kp was 0.38. These results correlate well with the dielectric properties; the 2% composition exhibits the highest permittivity, with the macro-microdomain transition near 25°C
Keywords :
barium; electric domains; ferroelectric materials; lead compounds; permittivity; piezoceramics; 25 C; Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramic; Pb(MgNb)O3-PbTiO3:Ba; barium doping; dielectric properties; electric field-induced piezoelectric properties; macro-microdomain transition; permittivity; relaxor ferroelectric; Barium; Calcination; Ceramics; Dielectric measurements; Doping; Electrostriction; Grain size; Niobium; Powders; Relaxor ferroelectrics;
Conference_Titel :
Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on
Conference_Location :
East Brunswick, NJ
Print_ISBN :
0-7803-3355-1
DOI :
10.1109/ISAF.1996.598122
