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[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics最新文献

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Thermal hysteresis of dielectric response in lead scandium tantalate ceramics 钽酸铅钪陶瓷介质响应的热滞后
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200285
H. Wang, W. Schulze
{"title":"Thermal hysteresis of dielectric response in lead scandium tantalate ceramics","authors":"H. Wang, W. Schulze","doi":"10.1109/ISAF.1990.200285","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200285","url":null,"abstract":"Lead scandium tantalate (PST) is a ferroelectric relaxor with the perovskite structure of A(B'B\")O/sub 3/. An anomalously large thermal hysteresis in the dielectric response was found for the mostly disordered PST ceramic. The degree of the hysteresis decreased with increased ordering. The mostly ordered PST ceramics exhibited a typical thermal hysteresis in dielectric response like the normal ferroelectric that forms macrodomains at the transition temperature. The large dielectric hysteresis found in the mostly disordered PST is ascribed to the microdomain-macrodomain transition, which probably occurs when a critical interaction level is reached between microdomains.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130675761","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
Characterization of thin film PLZT for spatial light modulator applications 用于空间光调制器的薄膜PLZT的特性
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200362
S. Mancha, M. Ivey, R. Carter, G. Lavigne
{"title":"Characterization of thin film PLZT for spatial light modulator applications","authors":"S. Mancha, M. Ivey, R. Carter, G. Lavigne","doi":"10.1109/ISAF.1990.200362","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200362","url":null,"abstract":"PLZT thin films were characterized for possible use in spatial light modulator applications. Photocurrents, photosensitivity, and hysteresis characteristics were measured. Optical data were stored in the films and read out using scanning techniques. On the basis of the results and previous work, these thin films show promise for applications to spatial light modulators.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125602433","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 novel ultrasonic linear actuator 一种新型超声直线驱动器
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200226
K. Ohnishi
{"title":"A novel ultrasonic linear actuator","authors":"K. Ohnishi","doi":"10.1109/ISAF.1990.200226","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200226","url":null,"abstract":"An ultrasonic linear actuator operated by a combined wave of longitudinal vibration and flexural vibration excited by nonlinearly connected bars is described. A multilayered piezoelectric actuator was used at the actuator, and aluminum bars as the elastic body. The phase difference of expansion-contraction and bending varies with the operation frequency applied resulting in generation of the right-left movement. The new actuator showed excellent response and controllability with a small size and a high driving force. Its application to precise positioning was considered. The result of this trial is reported.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114296458","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
Pyroelectric properties of various LiTaO/sub 3/ related ceramics 各种LiTaO/ sub3 /相关陶瓷的热释电性能
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200263
H. In, R. von der Muhll, Z. Ye, J. Ravez
{"title":"Pyroelectric properties of various LiTaO/sub 3/ related ceramics","authors":"H. In, R. von der Muhll, Z. Ye, J. Ravez","doi":"10.1109/ISAF.1990.200263","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200263","url":null,"abstract":"Highly densified LiTaO/sub 3/ derived ceramics have been obtained in the LiTaO/sub 3/-Li/sub 2/O, LiTaO/sub 3/-LiMgF/sub 3/-LiMg(OH)/sub 3/, LiTaO/sub 3/-Li/sub 2/SiO/sub 3/ and LiTaO/sub 3/-CaZrO/sub 3/ systems. The purpose was to relate the composition and the texture of the ceramic to its pyroelectric properties. All samples investigated showed a ferroelectric-paraelectric transition. The LiTaO/sub 3/-type solid solution in the LiTaO/sub 3/-CaZrO/sub 3/ system presented a diffuse phase transition resulting from chemical inhomogeneities. The pyroelectric coefficients of polarized ceramics were close to 4 nC-cm/sup -2/ K/sup -1/, a value which can be increased up to 6 nC-cm/sup -2/ K/sup -1/ by quick sintering for the calcium and zirconium containing samples.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115069830","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
Electric field dependence of d/sub h/ in lead magnesium niobate-lead titanate ceramics d/sub h/在铌镁铅-钛酸铅陶瓷中的电场依赖性
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200259
D. Taylor, Dragan Damjanovic, A. Bhalla, L. Cross
{"title":"Electric field dependence of d/sub h/ in lead magnesium niobate-lead titanate ceramics","authors":"D. Taylor, Dragan Damjanovic, A. Bhalla, L. Cross","doi":"10.1109/ISAF.1990.200259","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200259","url":null,"abstract":"The hydrostatic piezoelectric coefficient d/sub h/, in the 0.9PMN-0.1PT ferroelectric relaxor composition was studied as a function of the electric bias field at 500 Hz using a laser interferometer. It was found that d/sub h/ approaches a very large value of approximately 300 pC/N and then saturates at an electric bias field of approximately 3.5 kV/cm. The voltage coefficient and the sensitivity were also found to be comparable to and larger than, respectively, those in lead zirconate-titanate (PZT) ceramics despite a high dielectric constant in the relaxor material. Unlike the d/sub 33/ and d/sub 31/ piezoelectric coefficients, d/sub h/ did not, under the experimental conditions, depend on electric bias field in a manner predicted by the phenomenological theory.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122887761","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
Organo-metallic Langmuir-Blodgett multilayers: pyroelectric and dielectric properties 有机金属Langmuir-Blodgett多层膜:热释电和介电性质
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200271
M. W. Poulter, T. Richardson, G. Roberts, A. Smallridge, S. G. Davies
{"title":"Organo-metallic Langmuir-Blodgett multilayers: pyroelectric and dielectric properties","authors":"M. W. Poulter, T. Richardson, G. Roberts, A. Smallridge, S. G. Davies","doi":"10.1109/ISAF.1990.200271","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200271","url":null,"abstract":"Attempts were made to increase the pyroelectric coefficient of a novel class of organo-metallic Langmuir-Blodgett multilayers by increasing the packing density of molecular dipoles. Pyroelectric and dielectric data are presented and compared for these materials. Although the new molecules showed improved structure and lower permittivity and dielectric loss, contrary to expectations, this approach has not produced an increase in pyroelectric coefficients. The largest figure obtained for a pure ruthenium complex remains at 0.4 mu Cm/sup -2/K/sup -1/, shown by ( eta /sup 5/-cyclopentadienyl (bistriphenylphosphine) ruthenium(4-heptadecyloxybenzonitrile) hexafluorophosphate).<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122912296","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
PFHS synthesis of zinc and lead salts for electronic ceramics 电子陶瓷用锌铅盐的PFHS合成
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200323
S. Kang, O. Wilson, M. Munson, R. Riman
{"title":"PFHS synthesis of zinc and lead salts for electronic ceramics","authors":"S. Kang, O. Wilson, M. Munson, R. Riman","doi":"10.1109/ISAF.1990.200323","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200323","url":null,"abstract":"Precipitation from homogeneous solution (PFHS) techniques provide a number of methods to prepare precursor salts for the oxides of zinc and lead. Proton consumption (PC), anion release (AR) and combined PC/AR/PFHS methods have been used successfully to prepare zinc and lead oxalate and hydroxycarbonate salts that display various morphologies and sizes depending on the synthesis conditions. Research activity in the area of PFHS synthesis of zinc and lead salts for electronic ceramic components is described.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125362824","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
New piezoelectric ceramics with high coupling factor Kt 新型高耦合系数Kt压电陶瓷
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200191
Wang Yongling, Dai Xunhu, Sun Dazhi
{"title":"New piezoelectric ceramics with high coupling factor Kt","authors":"Wang Yongling, Dai Xunhu, Sun Dazhi","doi":"10.1109/ISAF.1990.200191","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200191","url":null,"abstract":"The high-Kt performance of PZT95/5-type ceramics was occasionally exploited during the study of their phase transition properties. This report gives some results of the primary studies of this performance. The study of the relationship between Kt and the ratio of Zr/Ti is discussed. As with other piezoelectric ceramics, the doping effect on Kt is obvious. The Nb/sub 2/O/sub 5/ doping effect is reported.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125439452","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
Development and application of shape memory ceramic actuators 形状记忆陶瓷作动器的研制与应用
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200305
K. Oh, A. Furuta, K. Uchino
{"title":"Development and application of shape memory ceramic actuators","authors":"K. Oh, A. Furuta, K. Uchino","doi":"10.1109/ISAF.1990.200305","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200305","url":null,"abstract":"Shape memory unimorph actuators have been trial manufactured using lead-zirconate-based antiferroelectric ceramics. The unimorph structure requires slightly larger Ti concentration than the simple disk, to obtain the shape memory effect. This is probably due to the compressive stress generated in the unimorph structure. The dynamic response has also been investigated in the shape memory unimorph. Only an electric field pulse with a short period of 5 ms is necessary to drive the unimorph, which gives advantages in control over conventional piezoelectric actuators. The shape memory unimorph has been applied to a latching relay. The size of the latching relay can be reduced considerably by using the shape memory unimorph, in comparison with the conventional electromagnetic latching relay.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121233578","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
Basic thin film processing for perovskite materials 钙钛矿材料的基本薄膜加工
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI: 10.1109/ISAF.1990.200240
H. Adachi, M. Kitabatake, H. Higashino, K. Setsune, K. Wasa
{"title":"Basic thin film processing for perovskite materials","authors":"H. Adachi, M. Kitabatake, H. Higashino, K. Setsune, K. Wasa","doi":"10.1109/ISAF.1990.200240","DOIUrl":"https://doi.org/10.1109/ISAF.1990.200240","url":null,"abstract":"Basic thin-film processing for ferroelectric perovskite oxides was investigated. Amorphous, polycrystal, and epitaxial thin films of Pb-based perovskite ferroelectrics were prepared by RF-magnetron sputtering and their properties are discussed. By utilizing the epitaxial PLZT films with excellent ferroelectric properties, several applications to optical electronic devices were examined, and an optical transmission system was constructed using high-speed PLZT optical switches. Trends in ferroelectric thin films are discussed.<<ETX>>","PeriodicalId":269368,"journal":{"name":"[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116407397","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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