The characteristics of low-temperature sintered PbTiO 3 based ceramics and its applications

Samarium (Sm) modified lead titanate ceramics with a composition of (Pb 0.85Sm 0.1)(Ti 0.98Mn 0.02)O 3 piezoceramics doped with SiO 2 were prepared by conventional mixed-oxide method. Microstructural and compositional analyses of the PbTiO 3-based ceramics have been carried out using X-ray diffracti...

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Bibliographic Details
Published inSensors and actuators. A. Physical. Vol. 134; no. 2; pp. 452 - 456
Main Authors Chen, Te-Yi, Chu, Sheng-Yuan, Chang, Ren-Chuan, Cheng, Chih-Kao, Hong, Cheng-Shong, Nien, Hsiau-Hsian
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2007
Subjects
Lead titanate ceramics
Low-temperature sintered
Piezoelectricity
SAW
Piezoelectricity
SAW
Low-temperature sintered
Lead titanate ceramics
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Summary:Samarium (Sm) modified lead titanate ceramics with a composition of (Pb 0.85Sm 0.1)(Ti 0.98Mn 0.02)O 3 piezoceramics doped with SiO 2 were prepared by conventional mixed-oxide method. Microstructural and compositional analyses of the PbTiO 3-based ceramics have been carried out using X-ray diffraction (XRD) and scanning electron microscope (SEM). The effects of Si additives on the sintering temperature and piezoelectric properties of the ceramics have been investigated. We successfully showed that the SiO 2 was helpful in lowering the sintering temperature from 1250 to 1100 °C and still keeps good piezoelectric and dielectric properties. Surface acoustic wave (SAW) devices were fabricated and the properties, including phase velocity and temperature coefficient of frequency (TCF), were measured.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2006.05.005