Title :
Dielectric properties of liquid phase sintered Pb(Mg1/3Nb2/3)1-xZrxO3 ceramics
Author :
Chen, Gung-Fu ; Cheng, Syh-yuh ; Wang, Chien-Min
Author_Institution :
Mater. Res. Labs., Ind. Technol. Res. Inst., Chutung, Taiwan
Abstract :
Liquid phase sintering of Pb(Mg1/3Nb2/3)1-xZrxO3 ceramics (PMN1-xPZx) was carried out via the fluxing agents of Bi2O3Li2O and PbO. The sintering temperature of PMN1-xPZx could be lowered from 1300°C to less than 1000°C. Besides acting as a liquid-phase fluxing agent, both Bi2O3/Li2 O and PbO behave as a Curie shifter and depressor. Bi2O 3/Li2O decreases the Curie temperature of PMN1-xPZx, while PbO shifts the Curie temperature in an upward manner. The relaxation characteristics of PMN1-xPZx were enhanced with the incorporation of Bi2O3/Li2O. PbO cannot relax and therefore can only slightly broaden the dielectric maximum region of PMN 1-xPZx. The effects of Bi2O3/Li2O and PbO on the dielectric properties of PMN1-xPZx were also investigated
Keywords :
ceramics; dielectric relaxation; ferroelectric Curie temperature; ferroelectric materials; lead compounds; sintering; Curie temperature; PbMgO3 NbO3ZrO3; ceramics; dielectric properties; ferroelectric; liquid phase sintered; relaxation characteristics; Capacitors; Ceramics; Dielectric constant; Dielectric liquids; Dielectric losses; Ferroelectric materials; Niobium; Surface-mount technology; Temperature; Zirconium;
Conference_Titel :
Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on
Conference_Location :
Urbana-Champaign, IL
Print_ISBN :
0-7803-0190-0
DOI :
10.1109/ISAF.1990.200312
