2006 15th ieee international symposium on the applications of ferroelectrics最新文献

Fabrication and Properties of Middle Frequency Filters by Using [Bi0.5(Na1-x-yKxLiy)0.5]TiO3 Lead-free Piezoelectric Ceramics [Bi0.5(Na1-x-yKxLiy)0.5]TiO3无铅压电陶瓷中频滤波器的制备及其性能

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387853

Li Ling-zhi, Xiao Ding-quan, Zhu Jian-guo, Lin Dun-min, Yu Ping, Wu Jiagang

引用次数: 0

Low Temperature Crystallization of Bismuth Zinc Niobate Thin Films by Pulsed Laser Annealing 脉冲激光退火制备铌酸铋锌薄膜的研究

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387825

Junling Wang, Jiangong Cheng, L. Tian, T. Dechakupt, S. Trolier-McKinstry

引用次数: 1

Electromechanical Behavior Of Two Phase Non Percolative Composites: Comparison Between Carbon Black / Polyurethane And PZT / Polyurethane Films 两相非渗透复合材料的机电性能:炭黑/聚氨酯与PZT /聚氨酯薄膜的比较

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387841

B. Guiffard, R. German, L. Seveyrat, G. Sebald, A. Benayad, D. Guyomar

{"title":"Electromechanical Behavior Of Two Phase Non Percolative Composites: Comparison Between Carbon Black / Polyurethane And PZT / Polyurethane Films","authors":"B. Guiffard, R. German, L. Seveyrat, G. Sebald, A. Benayad, D. Guyomar","doi":"10.1109/ISAF.2006.4387841","DOIUrl":"https://doi.org/10.1109/ISAF.2006.4387841","url":null,"abstract":"In this study, electric field-induced thickness strain of pure polyurethane (PU), carbon black C/PU composite and ferroelectric PZT/PU composite have been compared. The three compositions have been submitted to whether a bipolar electric field (0.1 Hz), whether a voltage step. Both C and PZT loading improves the strain of the pure polymer matrix. However, PZT filling yields the highest dynamic strain amplitude (-8.1%) achieved for a field of 13.3 kV/mm. For a given field value, the static strain amplitude obtained after a voltage step is nearly equal to the dynamic strain amplitude. The measurement of voltage step-induced current allowed to determine the constant current-voltage (I-V) characteristics of the three compositions and revealed that predominant space charge limited current occurs in the PZT/PU, whereas three different charge transport mechanisms are activated in the pure and C/PU films, depending on the voltage range. These two distinct electrical behaviors may indicate a difference in the trapping ability owing to the presence of shallow traps in PZT/PU and deeper traps in C/PU and especially in pure PU, which could be at the origin of the larger deformations observed for PZT/PU.","PeriodicalId":441219,"journal":{"name":"2006 15th ieee international symposium on the applications of ferroelectrics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116738049","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

Nonlinear Dielectric Properties of (Ba0.60, Sr0.40)TiO3 Thin Films with Anisotropic Epitaxy 各向异性外延(Ba0.60, Sr0.40)TiO3薄膜的非线性介电性能

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387863

E. K. Akdoğan, W. Simon, A. Safari

引用次数: 0

Dielectric Behavior of PFW-PT Relaxors: Model-Parameters Extraction PFW-PT弛豫器的介电性能:模型参数提取

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387861

Cheng‐Shong Hong, S. Chu, Wen-Chang Su, R. Chang, H. Nien, Y. Juang

引用次数: 0

Electrical Properties of Step-down Multilayer Piezoelectric Transformer for AC-DC converter 交直流变换器用降压多层压电变压器的电学特性

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387871

J. Yoo, Kookjin Kim, Chang-Bae Lee, D. Paik, H. Yoon, Jaeil Hong

引用次数: 1

Dielectric Hysteresis in Thin-Film Ferroelectrics and Relaxors 薄膜铁电体和弛豫器中的介电滞后

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387866

M. Tyunina, J. Levoska, I. Jaakola

引用次数: 0

Determination of Effective Material Parameters for Piezoelectric Multilayer Actuators 压电多层作动器有效材料参数的确定

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387892

E. Leder, T. Hegewald, M. Kaltenbacher, R. Lerch

引用次数: 0

Properties of MFS Structures Using Ferroelectric VF2-TrFE Copolymer Film Gate 铁电VF2-TrFE共聚物膜栅MFS结构的性能研究

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387842

Kwang-ho Kim, Sang-Hyun Jeong, Haeng-Chul Choi, Soon-Won Jung, Jae‐Hyun Kim

{"title":"Properties of MFS Structures Using Ferroelectric VF2-TrFE Copolymer Film Gate","authors":"Kwang-ho Kim, Sang-Hyun Jeong, Haeng-Chul Choi, Soon-Won Jung, Jae‐Hyun Kim","doi":"10.1109/ISAF.2006.4387842","DOIUrl":"https://doi.org/10.1109/ISAF.2006.4387842","url":null,"abstract":"Ferroelectric vinylidene fluoride-trifluoroethylene (VF2-TrFE) copolymer films were directly deposited on degenerated Si (n+, 0.002 Omegaldrcm) using by spin coating method. A 1-5 wt% diluted solution of purified vinylidene fluoride-trifluoroethylene (VF2:TrFE = 70:30) in a dimethylformamide (DMF) solvent were prepared and deposited on silicon wafers at a spin rate of 2000-4000 rpm for 2~30 seconds. After annealing in a vacuum ambient at 100~200degC for 60 min, upper aluminum, gold and platinum electrodes were deposited for electrical measurement. X-ray diffraction results showed that the VF2-TrFE films on Si substrates had beta-phase of copolymer structures. The capacitance on highly doped Si wafer showed hysteresis behavior like a butterfly shape and this result indicates clearly that the copolymer films have ferroelectric properties. The typical measured remnant polarization (Pr) and coercive filed (EC) values were about 5.8 muC/cm2 and 470 kV/cm, respectively, in an applied electric field of plusmn 1 MV/cm. The measured switching times (tsw) was less than 20 ns. The leakage current densities measured at room temperature was less than 1 times 10-6 A/cm2 under a field of 1 MV/cm.","PeriodicalId":441219,"journal":{"name":"2006 15th ieee international symposium on the applications of ferroelectrics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130430860","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 Role of Anion Impurities in Barium Titanate 阴离子杂质在钛酸钡中的作用

2006 15th ieee international symposium on the applications of ferroelectrics Pub Date : 2006-07-01 DOI: 10.1109/ISAF.2006.4387820

I. Burn

{"title":"The Role of Anion Impurities in Barium Titanate","authors":"I. Burn","doi":"10.1109/ISAF.2006.4387820","DOIUrl":"https://doi.org/10.1109/ISAF.2006.4387820","url":null,"abstract":"It has been reported that fluorine ions (F-) can substitute for oxygen ions (O2-) in small amounts in barium titanate and act as electron donors. While fluorine is not usually an impurity in barium titanate, this work suggests that ions such as Cl- or (OH)-, that can be impurities, might behave similarly to F-. Cl- ions can be present in barium titanate made using barium chloride and/or titanium chloride, as in the oxalate process. Hydroxyl ions are common in barium titanate made by the hydrothermal or alkoxide processes. Other common impurities in barium titanate, such as Mg2+, Al3+, Fe3+, or Na+, are believed to behave as electron acceptors and induce \"extrinsic\" oxygen vacancies in the Ba2+Ti4+O3 crystal structure for charge balance. Acceptor impurities are minimized in the manufacture of barium titanate because the presence of oxygen vacancies can degrade the reliability of multilayer ceramic capacitors (MLC's) when the barium titanate is used in thin dielectric layers with Ni electrodes. In this paper we consider the possibility that anion donors, particularly (OH)-, might counteract the effect of minor levels of acceptor impurities and have a beneficial effect on the performance of MLC's with Ni electrodes and thin dielectric layers.","PeriodicalId":441219,"journal":{"name":"2006 15th ieee international symposium on the applications of ferroelectrics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127886435","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