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URN etd-0702104-133049 Statistics This thesis had been viewed 1795 times. Download 10 times. Author ching-yi Lin Author's Email Address No Public. Department Materials Engineering Year 2003 Semester 2 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 114 Title THE STUDY of PIEAOELECTRIC PROPERTIES in Pb(Sb1/2Nb1/2)O3-PbZrO3-PbTiO3 Keyword PZT piezoelectric ceramic PZT piezoelectric ceramic Abstract The purpose of this study is to understand the piezoelectric and dielectric properties of Pb(Sb1/2Nb1/2)O3-PbZrO3-PbTiO3 which is prepared by solid state reaction method.
The variation of dielectric constant of piezoelectric ceramics with temperature sometimes is important for some special applications. The study is to discuss the effect of adding excess PbO, protective atmosphere, variational Zr/Ti ratio and adding hard doping on ε–T characteristics. The kP, d33, tangent loss and variation of dielectric of Pb(Sb1/2Nb1/2)0.06Zr0.48Ti0.46O3 are not improved by adding excess PbO and protective atmosphere. Increasing the content of Ti would decrease the variation of dielectric constant with temperature. However, the kP and d33 become lower. However, the variation of dielectric constant with temperature is decreased with adding MnO2. From the results, Pb(Sb1/2Nb1/2)0.06Zr0.48Ti0.46O3 with 1.0wt% MnO2 is the best composition, where kP=0.548, d33=225(pc/N),Qm=1818, ε33=859.3, tanδ=0.439 and variation of dielectric constant with temperature is 5.1(1/℃) .
Advisor Committee Hur-Lun Lin - advisor
Chih-Wen Hsich - co-chair
Wan-Yi Wei - co-chair
Files Date of Defense 2004-05-24 Date of Submission 2004-07-02