共搜索到2963条信息，每页显示10条信息，共297页。用时：0小时0分0秒529毫秒
25 April 2006 Abstract: The piezoelectric ceramics xPb(Mn1/3Sb2/3)O3-(1-x)Pb(Zr1/2Ti1/2)O3 (abbreviated as PMS-PZT) were synthesized by traditional ceramics process. The effect of sintering temperature and the amount of Pb(Mn1/3Sb2/3)O3 (abbreviated as PMS) on phase structure, microstructure, piezoelectric and dielectric properties of PMS-PZT ceramics was investigated. The results show......
for the children[4]. Some countries have prohibited electronic devices containing lead[5]. Therefore, it is urgency to develop lead free piezoelectric ceramics to replace PZT-based ceramics. (K0.5Na0.5)NbO3... Effect of poling condition on piezoelectric properties of (K0.5Na0.5)NbO3 ceramics DU Hong-liang(杜红亮)1, TANG Fu-sheng(唐福生)1, LI Zhi-min(李智敏)1, ZHOU Wan-cheng(周万城)1, QU Shao-bo(屈绍波)2, PEI......
Properties of PMSZT Piezoelectric Ceramics near Morphotropic Phase Boundary Xu Mingxia1,Lu Cuimin1,LUO Yunfei1,Sun Qingchi1 (1.Key Laboratory for Advanced Ceramics and Machining Technology... region coexist. Most of the compositions show a diffuse phase transition with a strong frequency. PMS-PZT quinary system exhibits a well-situated property near the morphotropic phase boundary. The changes......
Properties of La2O3-Doped PNSZT Piezoelectric Ceramics Having Tetragonal and Rhombohedral Coexistent Phases Gao Chunhua1,Chen Zhigang1,Huang Xinyou1 (1.School of Materials Science and Engineering... PNSZT) piezoelectric ceramics,in which there are tetragonal and rhombohedral coexistent phases, was studied. A series of piezoelectric ceramics with good properties was obtained, having dielectric......
Piezoelectric and dielectric properties of Lix(K0.46Na0.54)1-xNb0.86Ta0.1Sb0.04O3 lead-free ceramics CHEN Zhi-wu(陈志武) 1, HU Jian-qiang(胡建强)2 1. College of Materials Science and Engineering, South...; Abstract: Lead-free piezoelectric ceramics Lix......
Piezoelectric Properties and Stability of Resonant Frequency of Cr Modified PSZN-PZT Ceramics Nie Qiang1,Sun Qingchi2,Wang Lifeng2 (1.School of Chemical Engineering and Technology, Tianjin... content.The EPR spectra and the piezoelectric properties of the PSZN-PZT ceramics prove that as the Cr content is low, and high valence of Cr ion plays an important role in ceramics. When Cr content increasing......
标识码:A Microstructure and electrical properties of Bi-based lead-free piezoelectric ceramics Bi0.5(Na0.82K0.18)0.5TiO3-BiCrO3 ZHOU Chang-rong1, LIU Xin-yu1, YANG Gui-hua2, YUAN Chang-lai1, JIANG..., Guilin 541004, China) Abstract: A new (Bi0.5Na0.5)TiO3-based lead-free piezoelectric ceramics, (1?x)Bi0.5(Na0.82K0.18)0.5TiO3-xBiCrO3 (BNKT-BCx), was prepared by a conventional ceramic sintering......
硅掺杂PMS-PZT材料的晶界行为对畴结构和压电性能的影响 李宝山1,殷庆瑞1,李国荣1,郑嘹赢1,朱志刚1 (1.中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海,200050) 摘要:运用XRD,TEM,EDS等实验手段,研究了Si离子掺杂对PMS-PZT材料的相结构,微观结构以及电畴形貌的影响.XRD测试结果表明,所有材料都显示钙钛矿结构,四方度(c/a)随着掺杂量的增加而增大.TEM研究结果表明,随着Si离子掺杂量的增加,电畴的形貌由鱼刺型过渡到微米级的带状畴,最后转变为波浪状的电畴.EDS表明在材料的晶界处含有纳米级的SiO2和PbSiO3,并且发现单斜晶系的孪晶ZrO2在晶界附近析出.本文对孪晶ZrO2的析出及其析出量随着硅离子含量增加而增加的原因作了解释,最后对材料压电性能的降低进行了探讨. 关键词:锑锰锆钛酸铅; TEM; 压电; 电畴......
Introduction The lead oxide based piezoelectric ceramics (mainly PZT-based ceramics) have been widely used for sensor, actuators, transducers, buzzers and other electronic devices[1]. However... ceramics (1-x)(K0.5Na0.5)NbO3-xLiNbO3(abbreviated as KNLN) were synthesized by a traditional solid state reaction. The effects of Li+ on the sintering characteristic, the phase structure and piezoelectric......
University, Nanchong 637002, China 2) Department of Materials Science, Sichuan University, Chengdu 610064, China摘 要:Lead-free piezoelectric ceramics (1-y)Bi0.5.... The results show that the addition of Li+ significantly improves the sintering performance and piezoelectric properties of the ceramics. X-ray diffraction (XRD) patterns indicate that the ceramics possess pure......
