• 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 >Elastic, piezoelectric, and dielectric characterization of modified BiScO/sub 3/-PbTiO/sub 3/ ceramics
【24h】

Elastic, piezoelectric, and dielectric characterization of modified BiScO/sub 3/-PbTiO/sub 3/ ceramics

机译：改性BiScO / sub 3 / -PbTiO / sub 3 /陶瓷的弹性，压电和介电特性

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 perovskite solid solution system (1-x)BiScO/sub 3/-(x)PbTiO/sub 3/ represents an interesting new family of high-temperature piezoelectric materials. Compositions near the morphotropic phase boundary (x /spl sim/ 0.64) have been reported to have high Curie temperatures (T/sub c/ > 450/spl deg/C) and good piezoelectric coefficients (d/sub 33/ /spl sim/ 460 pC/N). In this work, manganese additions were used to improve the high-temperature electrical resistivity and RC time constant of compositions near the morphotropic phase boundary. The addition of manganese was found to shift T/sub C/ to slightly lower temperatures (442/spl deg/C and 456/spl deg/C for x = 0.64 and x = 0.66, respectively). The piezoelectric activities of the modified materials were found to be reduced slightly due to the hardening effect of manganese; however, the temperature stability and resistivity of the modified materials were significantly enhanced. In this paper we present, for the first time, a complete set of materials constants, including the elastic (s/sub ij/, c/sub ij/), piezoelectric (d/sub ij/, e/sub ij/, g/sub ij/, h/sub ij/), dielectric (/spl epsi//sub ij/, /spl beta//sub ij/), and electromechanical (k/sub ij/) coefficients and compare them to both unmodified 0.36BiScO/sub 3/-0.64PbTiO/sub 3/ and PZT5A ceramics.
机译：钙钛矿固溶体体系（1-x）BiScO / sub 3 /-（x）PbTiO / sub 3 /代表了一个有趣的高温压​​电材料新家族。据报道，在同相相界附近（x / spl sim / 0.64）的成分具有较高的居里温度（T / sub c /> 450 / spl deg / C）和良好的压电系数（d / sub 33 / / spl sim / 460 pC / N）。在这项工作中，锰的添加被用来改善高温相的电阻率和RC时间常数的组成相相界附近。发现锰的添加将T / sub C /转移到稍低的温度（对于x = 0.64和x = 0.66，分别为442 / spl deg / C和456 / spl deg / C）。发现由于锰的硬化作用，改性材料的压电活性略有降低。然而，改性材料的温度稳定性和电阻率显着提高。在本文中，我们首次展示了一整套材料常数，包括弹性（s / sub ij /，c / sub ij /），压电（d / sub ij /，e / sub ij /，g / sub ij /，h / sub ij /），介电系数（/ spl epsi // sub ij /，/ spl beta // sub ij /）和机电系数（k / sub ij /），并将它们与未经修改的0.36进行比较BiScO / sub 3 / -0.64PbTiO / sub 3 /和PZT5A陶瓷。

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