Title :
Influence of B site substitutions on dielectric and piezoelectric characteristics of fluoridated PZT
Author :
Lebrun, L. ; Guiffard, B. ; Audigier, D. ; Boucher, E. ; Guyomar, D. ; Eyraud, L. ; Pleska, E.
Author_Institution :
Lab. de Genie Electrique et Ferroelectricite, INSA de Lyon, Villeurbanne, France
Abstract :
Some acceptor and fluorine co-doped PZT ceramics exhibit a low and non hysteretic dependence of d33 coefficient under uniaxial static stress up to 120 MPa and of N33 coefficient versus temperature between -40°C and +80°C. This behavior could be explained by a strong clamping effect of the domain walls due to the acceptor ion - F dipole, less mobile than the oxygen vacancy-acceptor ion defect dipole. In order to understand the hysteresis mechanism and the role of fluorine ions, fluoridated materials with different acceptors in B site have been prepared and characterized
Keywords :
dielectric hysteresis; electric domain walls; fluorine; lead compounds; piezoceramics; -40 to 80 C; B site substitution; PZT:F; PbZrO3TiO3:F; acceptor co-doping; acceptor ion-F dipole; dielectric characteristics; domain wall clamping; fluoridated PZT; hysteresis; oxygen vacancy-acceptor ion defect dipole; piezoelectric ceramic; Ceramics; Dielectrics; Hysteresis; Iron; Lattices; Manganese; Powders; Stability; Stress; Temperature dependence;
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.2000.941593
