• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Phase-transition temperatures and piezoelectric properties of (bi/sub 1/2/li/sub 1/2/)tio/sub 3/-(bi/sub 1/2/k/sub 1/2/)tio/sub 3/ lead-free ferroelectric ceramics
【24h】

Phase-transition temperatures and piezoelectric properties of (bi/sub 1/2/li/sub 1/2/)tio/sub 3/-(bi/sub 1/2/k/sub 1/2/)tio/sub 3/ lead-free ferroelectric ceramics

机译：（bi / sub 1/2 / li / sub 1/2 /）tio / sub 3 /-（bi / sub 1/2 / k / sub 1/2 /）tio / sub 3的相变温度和压电特性/无铅铁电陶瓷

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The phase-transition temperatures and piezoelectric properties of x(Bi1/2Na1/2)TiO3-y(Bi1/2Li1/2)TiO3-z(Bi1/2K1/2)TiO3 [x + y + z = 1] (abbreviated as BNLKT100y-100z) ceramics were investigated. These ceramics were prepared using a conventional ceramic fabrication process. The phase-transition temperatures such as depolarization temperatures Td, rhombohedral-tetragonal phase transition temperature TR-T, and dielectric-maximum temperature Tm were determined using electrical measurements such as dielectric and piezoelectric properties. The X-ray powder diffraction patterns of BNLKT100y-100z show the morphotropic phase boundary (MPB) between rhombohedral and tetragonal at approximately z = 0.20, and the piezoelectric properties show the maximum at the MPB. The electromechanical coupling factor &33, piezoelectric constant d33 and Td of BNLKT4-20 and BNLKT8-20 were 0.603, 176 pC/N, and 171degC, and 0.590, 190 pC/N, and 115degC, respectively. In addition, the relationship between d33 and Td of tetragonal side and rhombohedral side for BNLKT4-100z and BNLKT8-100z were presented. Considering both high Td and high d33, the tetragonal side of BNLKT4-100z is thought to be the superior composition. The d33 and Td of BNLKT4-28 were 135 pC/N and 218degC, respectively. Moreover, this study revealed that the variation of Td is related to the variation of lattice distortion such as rhombohedrality 90-alpha and tetragonality c/a.
机译：x（Bi1 / 2Na1 / 2）TiO3-y（Bi1 / 2Li1 / 2）TiO3-z（Bi1 / 2K1 / 2）TiO3 [x + y + z = 1]的相变温度和压电性能研究了BNLKT100y-100z）陶瓷。这些陶瓷使用常规的陶瓷制造工艺来制备。使用诸如介电和压电性质的电学测量来确定相转变温度，例如去极化温度Td，菱形-四方相转变温度TR-T和介电最高温度Tm。 BNLKT100y-100z的X射线粉末衍射图谱显示，在约z = 0.20处，菱面体和四方晶之间的相变相界（MPB），而压电性能在MPB处显示出最大值。 BNLKT4-20和BNLKT8-20的机电耦合系数＆33，压电常数d33和Td分别为0.603、176 pC / N和171degC，以及0.590、190 pC / N和115degC。另外，给出了BNLKT4-100z和BNLKT8-100z的四边形和菱形面的d33与Td之间的关系。考虑到高Td和高d33，认为BNLKT4-100z的四边形是更好的组成。 BNLKT4-28的d33和Td分别为135 pC / N和218degC。此外，这项研究表明，Td的变化与晶格畸变的变化有关，例如菱形90-alpha和四边形c / a。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号