• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Dielectric and piezoelectric properties of niobium-modified BiINO3-PbTiO3 perovskite ceramics with high Curie temperatures
【24h】

Dielectric and piezoelectric properties of niobium-modified BiINO3-PbTiO3 perovskite ceramics with high Curie temperatures

机译：居里温度高的铌改性BiINO3-PbTiO3钙钛矿陶瓷的介电和压电性能

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

Piezoelectric ceramics with T-c > 500 degrees C were projected in the perovskite BiInO3-PbTiO3 (BIPT) system based on their low tolerance factor (similar to 0.884). However, a stable perovskite phase could be synthesized only when the PbTiO3 (PT) content was greater than 75%. Furthermore, the large tetragonality (c/a > 1.08) and low electrical resistivity made the ceramics difficult to pole. Niobium-modified BIPT ceramics with PT contents of 80% and 85% were found to possess significantly lower dielectric loss at elevated temperatures, making it possible to polarize the materials. Piezoelectric properties were measured for a BIPT85-1.5 mol% Nb composition with a Curie temperature of 542 degrees C; the longitudinal piezoelectric coefficient and coercive field were found to be 60 pC/N and 125 kV/cm, respectively.
机译：钙钛矿型BiInO3-PbTiO3（BIPT）系统基于其低容忍度（类似于0.884），投影了T-c> 500摄氏度的压电陶瓷。但是，只有当PbTiO3（PT）含量大于75％时，才能合成稳定的钙钛矿相。此外，大的四方性（c / a> 1.08）和低电阻率使陶瓷难以极化。发现PT含量为80％和85％的铌改性BIPT陶瓷在高温下具有明显更低的介电损耗，从而可以使材料极化。对于居里温度为542℃的BIPT85-1.5mol％Nb组合物，测量了压电性能。纵向压电系数和矫顽场分别为60 pC / N和125 kV / cm。

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