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逆压电效应的影响是上述结果的原因.它的主要机制是在压应力下通过90°畴重新取向或钨青铜结构中基本组元---氧八面体的畸变使自发极化偏离于原压应力方向,一旦施加电场则造成位移量的大大增加. 关键词:压电陶瓷; 钨青铜结构; 圆环状压电驱动器; 逆压电效应; 应力; piezoelectric ceramics; tungsten bronze crystal structure; ring type piezo-actuator; converse piezoelectric effect; stress; [全文内容正在添加中] ......
, Zhenjiang 212013, China;2.School of Science, Jiangsu University, Zhenjiang 212013 ,China) Abstract:. PZT piezoelectric ceramic with La2O3, SrCO3, BaO and Sb2O5 was prepared. It has high value of the piezoelectric strain constant d33 ( -681 PC/N) and high value of-d33/d31 (2.65). Orthogonal piezoelectric composite materials was designed and prepared by PZT, DAD- 40 electric conductive adhesive......
, YANG G, MUKHERJEE B K. Piezoelectric strain in lead zirconate titanate ceramics as a function of electric field, frequency, and dc bias[J]. Journal of Applied Physics, 2003, 94(94): 1155-1162. [27....压电纤维-树脂复合层的有效面积为 27 mm×10 mm.由于PZT压电陶瓷在极化后同时具有d33和d31效应[2],通过叉指状电极对复合物施加交变电压以后,在沿陶瓷纤维长度方向(纵向)和垂直于长度的方向(横向)分别有拉伸,收缩型应变产生,因此通过在表面粘贴应变片的方式测试压电纤维复合物的纵向,横向自由应变.图1所示为表面粘贴有应变片的压电纤维复合物样品. 图1 压电纤维复合物样品图......
,Changzhou University2. Benxi Iron and Steel Company Limited摘 要:The Ba0.96Ca0.04Ti0.90Sn0.10O3-xNd2 O3(x = 0-0.08%) ceramics were prepared via traditional solid-state sintering method. The influences of Nd3+ substitution on the phase structure, dielectric properties,piezoelectric and ferroelectric properties of the ceramics were investigated. All......
,Changzhou University2. Benxi Iron and Steel Company Limited摘 要:The Ba0.96Ca0.04Ti0.90Sn0.10O3-xNd2 O3(x = 0-0.08%) ceramics were prepared via traditional solid-state sintering method. The influences of Nd3+ substitution on the phase structure, dielectric properties,piezoelectric and ferroelectric properties of the ceramics were investigated. All......
to 30 pm/V. Based on these properties, BNT is considered a promising alternate film material to PZT in piezoelectric MEMS applications. References [1] CHON U, JANG M H, KIM M G, CHANG C H. Layered... Thermal and piezoelectric properties of Bi3.15Nd0.85Ti3O12 thin film prepared by metal organic decomposition HU He-ping(胡和平)1, 2, DAI Shun-hong(戴顺洪) 1, ZHENG Xue-jun(郑学军)1, 3, ZHOU Yi-chun(周益春) 1......
Table 1 Efficiency of different piezoelectric ceramics in catalytic degradation of dye 4.3 压电纳米发电机-储能系统联用 XUE等[86]将"机械能-电能-化学能"的转换结合在一起,实现了机械能到化学能的直接转换及存储.他们通过用压电聚偏二氟乙烯(PVDF)膜代替传统Li电池的聚乙... Guo-liang, ZHOU Xue-fan, et al. Research progress in piezoelectric degradation of organic pollutants[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(8): 1997-2013. DOI: 10.11817/j......
PMSZT压电陶瓷的烧结工艺研究 孙清池1,陆翠敏1,徐明霞1 (1.天津大学,材料科学与工程学院,天津,300072) 摘要:研究保温时间对PMSZT压电陶瓷的相组成,显微结构及电性能的影响.结果发现,烧结温度1240℃保温1h时,密度达极值7.83g/cm3.保温1h的试样,晶粒致密均匀,居里温度最低.随着保温时间的缩短或延长,居里温度增加.电性能在保温1h时达最佳,εT33/e0=1700,d33=336pC/N,Kp=0.655,Qm=2200,tgδ=0.0030. 关键词:PMSZT压电陶瓷; 保温时间; 相组成; 显微结构; 电性能; PMSZT piezoelectric ceramics; soaking time; crystallographic phase; microstructure; electric-properties; [全文内容正在添加中] ......
烧结温度对PMS-PZT系陶瓷显微结构和压电性能的研究 李宝山1,殷庆瑞1,李国荣1,张望重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:研究了不同烧结温度对Pb(Mn1/3Sb2/3)O3-PbZrO3-PbTiO3(PMS-PZT)系压电陶瓷显微结构和压电性能的影响.实验结果表明:在1240℃,2h条件下烧结,能获得最优的...等研究表明,PMS-PZT系陶瓷具有很宽的烧结温度区域,特别是中低温烧结时仍能成瓷并具有高的压电性能,主要是因为PbO和Sb2O5在较低烧结温度下(1100℃)能够形成过渡液相促进陶瓷烧结,随着烧结温度的升高,它们能够重新进入晶格形成单一钙钛矿结构. 关键词:锑锰锆钛酸铅; 压电; 烧结温度; 液相; [全文内容正在添加中] ......
ceramics; piezoelectric properties; dielectric properties; ferroelectric properties; [全文内容正在添加中] ......
