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2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications最新文献

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On the computation of dielectric constants of composites 复合材料介电常数的计算方法
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775811
Hao-feng Zhao, Ling Wang
{"title":"On the computation of dielectric constants of composites","authors":"Hao-feng Zhao, Ling Wang","doi":"10.1109/SPAWDA.2008.4775811","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775811","url":null,"abstract":"This paper deals with computation of the dielectric constant of BaTiO3 composites according to two computation models. The results showed that the dielectric constant epsiv of materials increases with volume of BaTiO3, which is as same as that reported. At same time, the mediate phase was proved to exist between BaTiO3 and polymer. It indicates that the mediate phase computation model is rational.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132505176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Piezoelectric drill based on converse piezoelectric effect 基于逆压电效应的压电钻头
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775766
Lin Yang, Qing-jun Ding, Chun-sheng Zhao
{"title":"Piezoelectric drill based on converse piezoelectric effect","authors":"Lin Yang, Qing-jun Ding, Chun-sheng Zhao","doi":"10.1109/SPAWDA.2008.4775766","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775766","url":null,"abstract":"A new type of mode convert piezoelectric drill is presented. The drill uses converse piezoelectric effect to work. When exciting voltage is applied on piezoelectric ceramics, the basic structure of the drill will produce longitudinal vibration, which will be converted to local bending vibration by the drill bit fixed on the basic structure with an angle. These two vibrations will be composed to form the elliptical motion. This will provide power for cutting or drilling. The finite element analysis software ANSYS is used to design the structure of the piezoelectric drill, the simulation reveals the cutting locus of the drill under the working frequency. A prototype is manufactured according to the simulation, the laser scanning experiment to the prototype shows that the working frequency of the drill is 56 kHz, namely the cutting motion can reach 3360000 times/min and the cutting amplitude can be limited at micro-size. When the general dental drill is used on the prototype, it can present cutting and drilling on the general print paper, hardboard, aluminum plate, steel plate and so on.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132754088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
New method for fabrication of lead-free BaTiO3 piezoelectric ceramics 制备无铅BaTiO3压电陶瓷的新方法
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775862
K. Zhu, Likui Su, H. Ji, J. Qiu
{"title":"New method for fabrication of lead-free BaTiO3 piezoelectric ceramics","authors":"K. Zhu, Likui Su, H. Ji, J. Qiu","doi":"10.1109/SPAWDA.2008.4775862","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775862","url":null,"abstract":"BaTiO3 (BT) powders were synthesized by hydrothermal method for fabricating lead-free barium titanate piezoelectric ceramics. The effect of the two washing methods (distilled water and acetic acid solutions) on the piezoelectric properties of the BT ceramics was studied. BT ceramics with the higher piezoelectric properties (d33 value is over 190 pC/N) was obtained from the powders washed by acetic acid solution. The BaTiO3 ceramics from three types (BT01, BT03 and BT05) of hydrothermally synthesized BaTiO3 powders were sintered using traditional sintering method and microwave sintering method separately. Their piezoelectric properties were investigated and compared. The results indicate that only the specimens sintered by traditional sintering method from BT03 powders have better structure and higher piezoelectric properties (d33 value about 350 pC/N), all the specimens sintered by the microwave method exhibit high d33 value (over 350 pC/N). Our work shows that hydrothermal method and microwave sintering is very useful to enhance the piezoelectric properties of BT ceramics.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131736936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic analysis for shallow elastic cylindrical inclusion near multiple semi-cylindrical hills impacted by SH-wave sh波冲击下多个半圆柱形山丘附近浅弹性圆柱包体的动力学分析
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775818
Xiaobin Lu, Zai-lin Yang, Dian-kui Liu
{"title":"Dynamic analysis for shallow elastic cylindrical inclusion near multiple semi-cylindrical hills impacted by SH-wave","authors":"Xiaobin Lu, Zai-lin Yang, Dian-kui Liu","doi":"10.1109/SPAWDA.2008.4775818","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775818","url":null,"abstract":"Complex variable function and moving coordinates were introduced to investigate the dynamic stress concentration of a subsurface elastic cylindrical inclusion below multiple semi-cylindrical hills under SH-wave. The whole model was divided into two parts. Part I was composed of multiple circular domains which include the boundaries of multiple hills, and all the rest can be considered as part square. Therefore the lower half boundaries of multiple circular domains were ldquocommon boundariesrdquo of two parts. The next process was constructing the suitable displacement solutions in two parts respectively. Considering the boundary conditions of common boundaries and the elastic inclusion, a series infinite algebraic equation for dynamic stress concentration factors (DSCF) can be obtained. Finally, the calculating results are provided to show the influence of different parameters on DSCF.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129347570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The portable intelligent coin-tap test system of civil aircraft composite structures 民用飞机复合材料结构便携式智能投币测试系统
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775855
Yu Song, Yan-jun Li
{"title":"The portable intelligent coin-tap test system of civil aircraft composite structures","authors":"Yu Song, Yan-jun Li","doi":"10.1109/SPAWDA.2008.4775855","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775855","url":null,"abstract":"Now, most NDT methods (electromagnetism testing, eddy current inspecting, ultrasonic testing and so on) of composite have own their merits or defects and range of application. This paper will introduce an intelligent coin-tap test system of civil aircraft composite structure. With the character of high automatic facility, prompt and accuracy, this system can be employed in production and maintenance field of civil aircraft composite structure.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124607719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A study on frequency band characteristics of piezoelectric/piezomagnetic layered periodic composites 压电/压磁层状周期性复合材料的频带特性研究
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775831
Y. Pang, Yuesheng Wang, Jinxi Liu, D. Fang
{"title":"A study on frequency band characteristics of piezoelectric/piezomagnetic layered periodic composites","authors":"Y. Pang, Yuesheng Wang, Jinxi Liu, D. Fang","doi":"10.1109/SPAWDA.2008.4775831","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775831","url":null,"abstract":"This paper has studied the frequency band characteristics of the piezoelectric/piezomagnetic layered periodic composites. Both piezoelectric and piezomagnetic materials are assumed to be transversely isotropic. The displacement transfer coefficients of all the scattered waves are calculated by the transfer matrix and the stiffness matrix methods. Numerically calculated results show that the band structures are described consistently by the dispersion curves and the frequency responses of the transmitted waves. The most energy is carried by the transmitted waves which are of the same mode as the incident wave when the frequencies are at the passbands. However, the displacement transfer coefficients of quasi-transverse (QSV) or quasi-longitudinal (QP) waves arising from wave mode conversion may be very large at some particular frequencies in some passbands. Compared to the coupled transmitted magnetoacoustic (MA) and electroacoustic (EA) waves, the transfer coefficients of electric potential (EP) and magnetic potential (MP) waves are a little bigger.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125218535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterizations of elastic constants of transparent thin films deposited on substrates by laser ultrasonic method 激光超声法表征基底上透明薄膜的弹性常数
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775807
Zhe Li, Di Ma, Shu-Yi Zhang, K. Wasa, X. Shui
{"title":"Characterizations of elastic constants of transparent thin films deposited on substrates by laser ultrasonic method","authors":"Zhe Li, Di Ma, Shu-Yi Zhang, K. Wasa, X. Shui","doi":"10.1109/SPAWDA.2008.4775807","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775807","url":null,"abstract":"A laser generation and optical difference detection method of surface acoustic waves is used for characterizing elastic constants of thin films deposited on substrates. The film/substrate samples are prepared by a RF magnetron sputtering technique. Teflon-like films, deposited on three kinds of substrates, silicone plates, glass and copper plates, have been studied and the related parameters have been evaluated.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121777066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Nonlinear Mindlin plate equations for the thickness-shear vibrations of crystal plates 晶体板厚度-剪切振动的非线性Mindlin板方程
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775754
Ji Wang, R. Wu, Jianke Du, Dejin Huang, Hongping Hu, Yuantai Hu
{"title":"Nonlinear Mindlin plate equations for the thickness-shear vibrations of crystal plates","authors":"Ji Wang, R. Wu, Jianke Du, Dejin Huang, Hongping Hu, Yuantai Hu","doi":"10.1109/SPAWDA.2008.4775754","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775754","url":null,"abstract":"Mindlin plate equations have wide applications in engineering fields with piezoelectric crystal resonators in particular due to its accurate prediction of high frequency vibrations of plates in the vicinity of thickness-shear mode. As a linear theory based on the assumption of infinitesimal deformation, its applications have been limited mainly to vibration frequency analysis. Many important properties of quartz crystal resonators such as the electrical circuit parameters, and nonlinear phenomena such as the drive-level dependence (DLD), have to be studied with the consideration of higher-order material constants and subsequent inclusion of nonlinear strain components. This, in turn, implies that the consideration of large deformation related to the driving electrical field. The need of nonlinear theory for the analysis of high frequency vibrations of piezoelectric crystal plates have been noticed before, and research work concerning large electrical fields and deformation have been initiated for the calculation of electrical properties and DLD of quartz crystal resonators by many investigators recently. In this study, we start with higher-order constitutive relation which includes higher-order elastic constants. Then, nonlinear terms of strain components are considered in a compatible and systematic manner. By following Mindlin's procedure in deriving the two-dimensional equations, nonlinear Mindlin plate equations for large deformation are obtained. The equations take the familiar form of Mindlin plate theory except the inclusion of nonlinear terms in the strain tensor.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129271320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
The character of a piezoelectric layer bonded to an elastic substrate under static anti-plane electromechanical impacts 静电反平面机电冲击下弹性基板上的压电层的特性
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775841
D. Chang, Baolin Wang, Youhua Fan, Xu-yue Wang
{"title":"The character of a piezoelectric layer bonded to an elastic substrate under static anti-plane electromechanical impacts","authors":"D. Chang, Baolin Wang, Youhua Fan, Xu-yue Wang","doi":"10.1109/SPAWDA.2008.4775841","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775841","url":null,"abstract":"In engineering applications, piezoelectric materials are usually bonded to elastic substrates to form so-called smart materials and structures. Such materials and structures can respond to external electromechanical environments. This article studies a piezoelectric layer bonded to an elastic substrate subjected to static electromechanical loads, both of which are of finite length. A system of differential equation which own mix boundary condition is formulated in terms of the materials' physics characteristic and load character. The stress in the interface is determined by using separate variable and Fourier cosine transforms, and numerical analysis is performed and discussed. It is meaningful for research of reliability of intelligent material.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127659279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Recent progresses of sodium bismuth titanate based lead-free piezoelectric ceramics 钛酸铋钠基无铅压电陶瓷研究进展
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2008-12-01 DOI: 10.1109/SPAWDA.2008.4775838
Dong-qing Zhang, Q. Li, Na Hou, Ya Zhao, Chun-fang Cai
{"title":"Recent progresses of sodium bismuth titanate based lead-free piezoelectric ceramics","authors":"Dong-qing Zhang, Q. Li, Na Hou, Ya Zhao, Chun-fang Cai","doi":"10.1109/SPAWDA.2008.4775838","DOIUrl":"https://doi.org/10.1109/SPAWDA.2008.4775838","url":null,"abstract":"BNT-based lead-free piezoelectric ceramics have been attracting great attention worldwide as new piezoelectric ceramics which will be most possibly in place of lead-containing piezoelectric ceramics. However, they are not as good as those lead-based piezoelectric ceramics and need to be further improved. In this paper, the recent development of researches on BNT-based lead-free piezoelectric ceramics has been reviewed, and BNT-based lead-free piezoelectric ceramics has been focused on from the aspects of the new system, enhancement of properties by doping and the new processing techniques. The future researches of BNT-based lead-free piezoelectric ceramics were suggested.","PeriodicalId":190941,"journal":{"name":"2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126254461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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