Title :
The electrical properties of antiferroelectric lead zirconate-ferroelectric lead zinc niobate ceramics with lanthanum
Author :
Yoon, J.S. ; Srinkanth, V.S. ; Bhalla, A.S.
Author_Institution :
Pennsylvania State Univ., University Park, PA, USA
fDate :
30 Aug-2 Sep 1992
Abstract :
The electrical properties of antiferroelectric (AF) lead zirconate (PZ) with relaxor ferroelectric (FE) lead zinc niobate (PZN) are studied with reference to the field-induced phase transition near the morphotropic phase boundary. The Curie point decreased with increasing lanthanum addition up to 3 m/o, whereas for the AF-FE boundary it increased with increasing lanthanum. Above 4 m/o lanthanum, paraelectric and antiferroelectric regions were observed. The effects of lanthanum content and temperature on the dielectric, pyroelectric, and P-E hysteresis are reported
Keywords :
antiferroelectric materials; ceramics; dielectric hysteresis; dielectric polarisation; ferroelectric Curie temperature; ferroelectric transitions; lead compounds; permittivity; phase diagrams; pyroelectricity; -80 to 240 C; 1 kHz; 10 kHz; 100 Hz; 100 kHz; AF-FE boundary; Curie point; D-E hysteresis; P-E hysteresis; PZN; PbZrO3-PbZnO3NbO3; antiferroelectric; ceramics; dielectric constant; electrical properties; field-induced phase transition; morphotropic phase boundary; paraelectric region; phase diagrams; polarisation; pyroelectric coefficient; relaxor ferroelectric; Ceramics; Dielectric measurements; Ferroelectric materials; Hysteresis; Lanthanum; Niobium compounds; Powders; Pyroelectricity; Temperature; Zinc;
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.1992.300566
