高级检索
无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

退火处理对铅基弛豫型铁电体介电、压电性能的影响

夏峰; 姚熹   

  1. 西安交通大学电子材料与器件研究所; 西安 710049
  • 收稿日期:1998-03-16 修回日期:1998-04-21 出版日期:1999-02-20 网络出版日期:1999-02-20

退火处理对铅基弛豫型铁电体介电、压电性能的影响

XIA Feng; YAO Xi   

  1. Electronic Materials Research Laboratory; Xi an Jiaotong University Xi an 710049 China
  • Received:1998-03-16 Revised:1998-04-21 Published:1999-02-20 Online:1999-02-20

PDF (PC)

908

被引次数

11

摘要： 铅基弛豫型铁电体的峰值介电常数和压电性能在退火后有较大提高．在PMN－PT陶瓷中，kp由58％提高到66％，峰值介电常数由30900提高到37200，d33达到530pC／N.在PZN－PT－BT陶瓷中，kp由35％提高到51％，峰值介电常数km由11400提高到29000，d33由347PC／N提高到624pC／N．这种改善可能与晶界玻璃相的消除以及畴壁运动等因素有关

关键词: 退火处理, 弛豫型铁电体, 介电、压电性能

Abstract: After thermal annealing, dielectric and piezoelectric properties of lead-based ferroelectric ceramics increase apparently. In PMN-PT system, E=37200, kp=66% d33=530pC/N were obtained;in PZN-PT-BT system, m=29000, kp=51% d33 =624pC/N were obtained. Thermal annealing isa good way to improve the dielectric and piezoelectric properties of lead-based ferroelectric ceramics, and this effect can be attributed to the grain boundary layer and domain wall motion in thesematerials.

Key words: thermal annealing, relaxor ferroelectrics, dielectric and piezoelectric properties

中图分类号: