Title :
Dielectric, pyroelectric and piezoelectric properties in the relaxor ferroelectric (1-x-y) Pb(Mg1/3Nb2/3)O3-xPbTiO3 -yPbZrO3 system
Author :
Ko, J.S. ; Kim, Y.J. ; Shin, Y.H. ; Choi, S.W.
Author_Institution :
Dept. of Phys., Dankook Univ., Chungnam, South Korea
fDate :
30 Aug-2 Sep 1992
Abstract :
Dielectric, pyroelectric, and piezoelectric properties of relaxor ferroelectric in the (1-x-y) Pb(Mg1/3Nb2/3)O3 -xPbTiO3-yPbZrO3 solid solution series have been investigated. The dielectric constant and loss of poled ceramic samples were determined. The pyroelectric coefficient was measured by the static Byer-Roundy method as a function of temperature. The electromechanical coupling factor (Kp) was measured by the resonance-antiresonance method. The addition of PbZrO3 affects the dielectric and pyroelectric properties of PMN-PT, and the transition temperature is continuously shifted to lower temperature with a small increase of PbZrO3. The composition with the maximum electromechanical coupling factor exhibits high dielectric and pyroelectric properties
Keywords :
ceramics; ferroelectric materials; lead compounds; permittivity; piezoelectric materials; pyroelectricity; solid-state phase transformations; PMN-PbTiO3-PbZrO3; PbMgO3NbO3-PbTiO3-PbZrO3; dielectric constant; dielectric loss; electromechanical coupling factor; piezoelectric properties; pyroelectric coefficient; relaxor ferroelectric; resonance-antiresonance method; solid solution; static Byer-Roundy method; transition temperature; Ceramics; Dielectric constant; Dielectric losses; Dielectric measurements; Niobium; Pyroelectricity; Relaxor ferroelectrics; Resonance; 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.1992.300720
