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ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics最新文献

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The concept, effects and possible applications of optical and acoustical superlattices 光学和声学超晶格的概念、效果和可能的应用
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300615
N. Ming
{"title":"The concept, effects and possible applications of optical and acoustical superlattices","authors":"N. Ming","doi":"10.1109/ISAF.1992.300615","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300615","url":null,"abstract":"Based on the studies of ferroelectric domain structures and the influence of growth striations on paraferroelectric phase transitions, a new type of crystal with periodic or quasi-periodic laminar ferroelectric domains has been prepared. It has been demonstrated that this kind of crystal produces significant effects with regard to optical and acoustical wave processes and can be used as a new type of device for a variety of applications in the optoelectric and acoustoelectric field. The author presents an overview of experimental and theoretical results on the concept of optical and acoustical superlattices and of novel effects and applications of such superlattices. Particular attention is given to the enhancement of second-harmonic generation in LiNbO/sub 3/ superlattices, to a resonator made of LiNbO/sub 3/ acoustical superlattices, and to resonators made of Ba/sub 2/NaNb/sub 5/O/sub 15/ acoustical superlattices, and to transducers made of LiNbO/sub 3/ acoustical superlattices.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126252327","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
Development of portable DC voltage standard using PZTs 使用压电陶瓷的便携式直流电压标准的研制
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300567
M. Lal
{"title":"Development of portable DC voltage standard using PZTs","authors":"M. Lal","doi":"10.1109/ISAF.1992.300567","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300567","url":null,"abstract":"A simple, portable DC voltage standard has been developed, using poled PZT (lead zirconate titanate) with the application of a charge recovery process. The charge decay is due to compensating charges coming to the PZT surfaces from the atmosphere and/or by electrical loading of the PZT, and these charges screen the intrinsic PZT charge. The maximum open circuit voltage of the PZT has been recovered and measured with an accuracy of +or-10 mu V. It was also confirmed that the PZT DC voltage source remained constant at different places.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133035161","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
PLZT powders from acetate precursors via coprecipitation 醋酸前体共沉淀法制备PLZT粉末
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300584
C. Lin, B. Lee, G. Haertling
{"title":"PLZT powders from acetate precursors via coprecipitation","authors":"C. Lin, B. Lee, G. Haertling","doi":"10.1109/ISAF.1992.300584","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300584","url":null,"abstract":"Various chemical coprecipitation techniques used for the production of PLZT (lead lanthanum zirconate titanate) 2/55/45 (La/Zr/Ti) powders were investigated. The coprecipitation condition corresponding to 0.5 M oxalic acid at a titration rate of 24 cc/min and at a temperature of 21 degrees C yielded calcined powders with the largest surface areas. This condition was thus selected as the optimum one in regard to the sinterability of the powders. The characteristics of the PLZT 2/55/45 powders under the best precipitation condition were evaluated. FTIR (Fourier-transform infrared) spectroscopy and XRD (X-ray diffraction) showed that perovskite phase formation occurred at 550 degrees C.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124938525","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 use of design of experiments to evaluate the reliability of ferroelectric nonvolatile memories 利用实验设计来评估铁电非易失性存储器的可靠性
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300726
T. D. Hadnagy, S. Mitra, D. J. Sheldon
{"title":"The use of design of experiments to evaluate the reliability of ferroelectric nonvolatile memories","authors":"T. D. Hadnagy, S. Mitra, D. J. Sheldon","doi":"10.1109/ISAF.1992.300726","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300726","url":null,"abstract":"A full factorial experiment was performed on 4 K ferroelectric random access memory (FRAM) devices to determine their fatigue performance as a function of fatigue temperature, fatigue voltage, read/write voltage, pattern, and number of cycles of fatigue. The resulting response surface of short-term retention (10 s at 80 degrees C) and long-term retention (40 h at 100 degrees C) and the product functionality were the metrics used to evaluate the product performance. An empirical model was used to predict yields and product performance. Based on this model, process modifications were undertaken to improve the performance of the product fabricated with PZT (nominal composition: Pb/sub 1.10/Zr/sub 0.48/Ti/sub 0.52/O/sub 3/. As a result, better than two-orders-of-magnitude improvement in product performance over operating conditions was seen. In addition, a statistically based monitoring program has been developed to ensure product performance.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131721171","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
Sol-gel techniques for the preparation of ultrafine BaTiO/sub 3/ powders 溶胶-凝胶法制备超细BaTiO/ sub3 /粉体
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300623
Q. Zhang, D. Shen, H. Wang, W. Xue, M. Zhao
{"title":"Sol-gel techniques for the preparation of ultrafine BaTiO/sub 3/ powders","authors":"Q. Zhang, D. Shen, H. Wang, W. Xue, M. Zhao","doi":"10.1109/ISAF.1992.300623","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300623","url":null,"abstract":"It is shown that Ba(ClO/sub 4/)/sub 2/ and LiOC/sub 2/H/sub 5/ can be used as precursors to form Ba(OC/sub 2/H/sub 5/)/sub 2/. In addition, BaTiO/sub 3/ ultrafine powders can be prepared by the sol-gel process from Ba(OC/sub 2/H/sub 5/)/sub 2/ and Ti(OC/sub 4/H/sub 9/)/sub 4/. Ethylene glycol added to ethyl alcohol can greatly increase the solubility of Ba(OC/sub 2/H/sub 5/)/sub 2/, and thus the concentration of Ba(OC/sub 2/H/sub 5/)/sub 2/ and Ti(OC/sub 4/H/sub 9/)/sub 4/ can be increased. This leads to a fast sol-gel process for forming BaTiO/sub 3/ gel. Sol-gel-prepared ultrafine BaTiO/sub 3/ powders crystallize significantly if heated to 750 degrees C, and crystals fully develop at 900 degrees C. Sol-gel-prepared BaTiO/sub 3/ powders are ultrafine narrowly distributed in size, and spherical and polyhedral in appearance.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117177324","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
One-step, low-temperature sintering of SrTiO/sub 3/ based grain boundary barrier layer capacitor materials 一步低温烧结SrTiO/sub - 3/基晶界阻挡层电容器材料
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300588
Z. Yin, B. Xu, H. Wang
{"title":"One-step, low-temperature sintering of SrTiO/sub 3/ based grain boundary barrier layer capacitor materials","authors":"Z. Yin, B. Xu, H. Wang","doi":"10.1109/ISAF.1992.300588","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300588","url":null,"abstract":"A novel technique was developed to fabricate SrTiO/sub 3/-based GBBL (grain-boundary barrier layer) capacitor materials. The main feature of this technique is one-step, low-temperature (1100-1200 degrees C) sintering of the material, which is doped with a sintering aid composed of Li/sub 2/O and SiO/sub 2/, in a reducing atmosphere. The main dielectric properties of the materials obtained by this technique are effective dielectric constant in /sub eff/>5*10/sup 4/, dielectric loss tan delta <5.0%, volume resistivity rho >10/sup 9/ Omega -cm, temperature coefficient of in /sub eff/<10% (-25-+85 degrees C). The effects of dopant composition, sintering temperature, atmosphere, and Ti/Sr ratio on the sinterability and dielectric property of the capacitor materials are discussed. The mechanism underlying the role of sintering in the formation of semiconducting grains and insulating grain boundaries is examined, using the results of compositional microanalyses and microstructural analyses.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116937456","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
Photo-CVD of ferroelectric Pb(Zr,Ti)O/sub 3/ thin films 铁电Pb(Zr,Ti)O/ sub3 /薄膜的光电气相沉积研究
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300701
T. Katayama, M. Sugiyama, M. Shimizu, T. Shiosaki
{"title":"Photo-CVD of ferroelectric Pb(Zr,Ti)O/sub 3/ thin films","authors":"T. Katayama, M. Sugiyama, M. Shimizu, T. Shiosaki","doi":"10.1109/ISAF.1992.300701","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300701","url":null,"abstract":"Pb(Zr,Ti)O/sub 3/ thin films were grown by the photo-CVD (chemical vapor deposition) method using Pb(C/sub 2/H/sub 5/)/sub 4/, Zr(O-t-C/sub 4/H/sub 9/)/sub 4/, Ti(O-i-C/sub 3/H/sub 7/)/sub 4/, and O/sub 2/. In this growth system, both tetragonal Pb(Zr,Ti)O/sub 3/ films and rhombohedral Pb(Zr,Ti)O/sub 3/ films were obtained, and the","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116458113","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
Piezoelectric bimorphs with quadratic behavior using biased ZnO on Si/sub 3/N/sub 4/ 在Si/sub 3/N/sub 4/上偏置ZnO的二次型压电双晶
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300652
J. G. Smits, W. Choi
{"title":"Piezoelectric bimorphs with quadratic behavior using biased ZnO on Si/sub 3/N/sub 4/","authors":"J. G. Smits, W. Choi","doi":"10.1109/ISAF.1992.300652","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300652","url":null,"abstract":"Piezoelectric bimorphs have been made by sputtering ZnO on Si/sub 3/N/sub 4/. The ZnO was sandwiched between Cr/Au electrodes. Bimorphs 1688- and 2980- mu m long were produced. The frequency dependence of the tip deflection of the bimorphs was measured. It was observed that the deflection increases with biasing voltage, as was to be expected from static deflection measurements.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116537065","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 temperature dependence of sound velocities, elastic constants and acoustic attenuation of lead lanthanum zirconate titanate (Pb,La)(Zr,Ti)O/sub 3/ 锆镧钛酸铅(Pb,La)(Zr,Ti)O/sub / 3/的声速、弹性常数和声衰减的温度依赖性
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300719
A. Y. Wu, G. Nicolaides, D. Hwang
{"title":"The temperature dependence of sound velocities, elastic constants and acoustic attenuation of lead lanthanum zirconate titanate (Pb,La)(Zr,Ti)O/sub 3/","authors":"A. Y. Wu, G. Nicolaides, D. Hwang","doi":"10.1109/ISAF.1992.300719","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300719","url":null,"abstract":"Sound velocities, elastic constants, and acoustic attenuation in PLZT (lead lanthanum zirconate titanate) 9/65/35 bulk ceramic material have been determined by ultrasonic techniques between 1.2 and 470 K. Anomalous elastic behavior, including a broad dip in sound velocity and a sharp cusp in attenuation, was observed around the diffuse phase transition at 330 K. The sound velocity increases strongly and linearly with decreasing temperature at low temperatures. This behavior is different from that predicted by the Debye lattice model. An unusually large (42%) discrepancy between the elastic Debye temperature and the calorimetric Debye temperature was found and can be attributed to the nature of the disorderness in this ceramic material.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115348450","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: 3
Piezoelectric properties of 'd/sub 31/-zero', 'd/sub 33/-zero' or 'd/sub h/-zero' 1-3 or 2-2 type composite consisting of 0-3 subcomposite of polymer/PbTiO/sub 3/ and that of polymer/PZT 聚合物/PbTiO/sub 3/ 0-3亚复合材料和聚合物/PZT 0-3亚复合材料组成的“d/sub 31/- 0”、“d/sub 33/- 0”或“d/sub h/- 0”1-3或2-2型复合材料的压电性能
ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1992-08-30 DOI: 10.1109/ISAF.1992.300682
H. Banno, K. Ogura
{"title":"Piezoelectric properties of 'd/sub 31/-zero', 'd/sub 33/-zero' or 'd/sub h/-zero' 1-3 or 2-2 type composite consisting of 0-3 subcomposite of polymer/PbTiO/sub 3/ and that of polymer/PZT","authors":"H. Banno, K. Ogura","doi":"10.1109/ISAF.1992.300682","DOIUrl":"https://doi.org/10.1109/ISAF.1992.300682","url":null,"abstract":"Piezoelectric constants (d/sub 33/, d/sub h/, and d/sub 31/) of 1-3 and 2-2 composites consisting of 0-3 subcomposites of polymer/PbTiO/sub 3/ ceramic powder and polymer/PZT (lead zirconate titanate) ceramic powder were investigated in order to obtain a d/sub 31/-zero, d/sub 33/-zero, or d/sub h/-zero composite by changing the volume fraction of the subcomposites and giving them opposite polarities. Those subcomposites had different piezoelectric anisotropies but the same elastic-constant values. Good agreement between the theoretical and experimental results was observed.<<ETX>>","PeriodicalId":367142,"journal":{"name":"ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122066438","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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