Title :
Dielectric and piezoelectric properties of PZT ceramics doped with 4PbO-B2O3
Author :
Wu, Long ; Wang, Chung-Heuy
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng-Kung Univ., Tainan, Taiwan
Abstract :
Piezoelectric materials consisting of Pb(ZrxTi1-x ) O3 [x=0.52 and 0.94] and glass powder 4PbO-B2 O3 were studied. It is shown that, if a small amount of 4PbO-B2O3 glass powder is added to the PZT system, the sintering temperature can be reduced and the dielectric and piezoelectric properties will be enhanced. For PZT (52/48) doped with 0.2 wt.% 4PbO-B2O3 and sintered at 1150°C for 30 h, the planar coupling factor kp is higher than that of plain PZT (52/48). For PZT (94/6) doped with 0.5 wt.% 4PbO-B2O3, a planar coupling factor and a dielectric constant equal to 0.16 and 330, respectively, can be attained with sintering at 950°C for 30 h
Keywords :
ceramics; lead compounds; permittivity; piezoelectric materials; sintering; zirconium compounds; 1150 degC; 30 h; 950 degC; PZT:PbOB2O3; PbZrO3TiO3:PbOB2O3; dielectric constant; glass powder; piezoelectric materials; piezoelectric properties; planar coupling factor; sintering temperature; Ball milling; Ceramics; Dielectrics; Furnaces; Glass; Piezoelectric materials; Polarization; Powders; Raw materials; Temperature;
Conference_Titel :
Electronic Components and Technology Conference, 1992. Proceedings., 42nd
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0167-6
DOI :
10.1109/ECTC.1992.204222
