Electric and temperature stability properties of low temperature sintered-PSN-PMnN-PZT ceramics and its application

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Title:	Electric and temperature stability properties of low temperature sintered-PSN-PMnN-PZT ceramics and its application
Authors:	Tsai, Cheng-Che Kung, Ming-Chang Pei, Ching-Hsing 蔡振哲官銘章裴慶興 (東方技術學院電子與資訊系) (東方技術學院通識教育中心)
Contributors:	東方技術學院電子與資訊系東方技術學院通識教育中心
Keywords:	Power therapeutic transduver temperature coefficient of static capacitance
Date:	2008-11
Issue Date:	2012-12-24 15:29:17 (UTC+8)
Publisher:	臺北市: 國立臺北科技大學
Abstract:	Resonant-type of power therapeutic transducer generally requires good piezoelectric material. It possesses high electromechanical coupling factor, mechanical quality factor and homogenous microstructure. Besides these properties, high temperature stability of resonant resistance and static capacitance should be also concerned. Modified piezoelectric ceramics with compositions of Pb[(Sb1/2Nb1/2)0.02(Mn1/3Nb2/3)x-(0.98-x)(ZryTi-y)]O3+0.8wt％ PbO(abbreviated as PMNZT-1) (0.02≦x≦0.07) were prepared from B-oxides precursor method. Piezoelectric and dielectric properties are investigated. To transfer maximum power to load, the temperature coefficient of static capacitance and power must be considered. The suitable composition, obtained at x=0.04, possessed electromechanical properties kp=0.69, kt=0.50, Qm=1500, and ε33T/ε0=1360. In addition, the temperature coefficient of static capacitance and resonant resistance were 2200ppm/℃ and, 700ppm/℃, respectively. Furthermore, using this well-developed material to construct an 1 MHz therapeutic transducer to examine its input electrical power, we found that the degradation of input electrical power using B-oxides precursor method is less than that using conwentional method at5 maximum operating temperature 80℃. These results confirm that this material prepared by the B-oxides precursor method is good candidate for making power therapeutic transducer.
Relation:	2008年中國材料科學學會年會暨學會四十週年慶論文摘要集中國材料科學學會年會
Appears in Collections:	[Department of Electronics Engineering and Computer Science] conference [Center for General Education] conference

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