Title :
Optimisation of new liquid-phase sintering aid for PZT
Author :
Ringgaard, E. ; Nielsen, E.R. ; Wolny, W.W.
Author_Institution :
Ferroperm Piezoceramics A/S, Kvistgaard, Denmark
Abstract :
A new sintering aid designed for a commercial type I PZT (lead zirconate titanate) allows sintering at temperatures as low as 800°C. The additive contains PbO and Cu2O and works by forming a liquid phase. The amount of additive needed to reduce the sintering temperature below 900°C causes a certain deterioration of the piezoelectric properties in comparison with the original composition, however. The present work describes the optimisation of the sintering aid in order to obtain low dielectric loss and high piezoelectric activity at sintering temperatures close to 1100°C. This is particularly relevant to co-fired multilayer components
Keywords :
dielectric losses; lead compounds; piezoceramics; sintering; 800 to 1100 C; PZT; PZT ceramic; PbO-Cu2O; PbO-Cu2O additive; PbZrO3TiO3; co-fired multilayer component; dielectric loss; liquid-phase sintering aid; piezoelectric properties; process optimisation; Additives; Ceramics; Dielectric losses; Electrodes; Lead; Microwave integrated circuits; Nonhomogeneous media; Piezoelectric materials; Temperature distribution; Titanium compounds;
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.2000.941594
