TY - JOUR
T1 - Doping effects of SiO2 on the dielectric and piezoelectric properties of PbTiO3-based ceramics and Its SAW applications
AU - Chen, Te Yi
AU - Chu, Sheng Yuan
AU - Cheng, Chih Kao
PY - 2005
Y1 - 2005
N2 - The Sm-modified lead titanate ceramics with a composition of (Pb 0.85Sm0.1)-(Ti0.98Mn0.02)O 3 piezoceramics doped with SiO2 were prepared by conventional mixed-oxide method using sintering temperature at 1100°C. Microstructural and compositional analyses of the PbTiO3-based ceramics have been carried out using XRD and SEM. The effects of dopants on the sintering temperature and piezoelectric properties of the ceramics have been investigated. We successfully showed that these additives were helpful in lowering of the sintering temperature and still keep high thickness electromechanical coupling coefficient, kt, and small planar electromechanical coupling coefficient, kp. Surface acoustic wave (SAW) devices were fabricated and the properties, including phase velocity and temperature coefficient of frequency (TCF), were measured.
AB - The Sm-modified lead titanate ceramics with a composition of (Pb 0.85Sm0.1)-(Ti0.98Mn0.02)O 3 piezoceramics doped with SiO2 were prepared by conventional mixed-oxide method using sintering temperature at 1100°C. Microstructural and compositional analyses of the PbTiO3-based ceramics have been carried out using XRD and SEM. The effects of dopants on the sintering temperature and piezoelectric properties of the ceramics have been investigated. We successfully showed that these additives were helpful in lowering of the sintering temperature and still keep high thickness electromechanical coupling coefficient, kt, and small planar electromechanical coupling coefficient, kp. Surface acoustic wave (SAW) devices were fabricated and the properties, including phase velocity and temperature coefficient of frequency (TCF), were measured.
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U2 - 10.1080/10584580590897281
DO - 10.1080/10584580590897281
M3 - Conference article
AN - SCOPUS:33644761860
SN - 1058-4587
VL - 69
SP - 65
EP - 72
JO - Integrated Ferroelectrics
JF - Integrated Ferroelectrics
T2 - 16th International Symposium on Integrated Ferroelectrics, ISIF-16
Y2 - 5 April 2004 through 8 April 2004
ER -