Co2O3掺杂Ba(Ti0.91Zr0.09)O3陶瓷介电性能研究

Co₂O₃掺杂Ba(Ti_0.91Zr_0.09)O₃陶瓷介电性能研究

摘要: 采用固相反应法制备了Co₂O₃掺杂的Ba (Ti_0.91Zr_0.09) O₃陶瓷, 研究了Co₂O₃掺杂对Ba (Ti_0.91Zr_0.09) O₃陶瓷相结构与介电性能的影响。结果表明, 掺杂Co₂O₃后Ba (Ti_0.91Zr_0.09) O₃陶瓷产生了第二相, 随着Co₂O₃施主掺杂量的增加, 抑制了第二相的产生, 掺杂后的Ba (Ti_0.91Zr_0.09) O₃陶瓷是具有弥散相变的铁电体, 弥散程度随掺杂量的增加而增加, x=0.01时, 矫顽场最大。

Abstract: Co₂O₃ doped Ba (Ti_0.91Zr_0.09) O₃ ceramics were prepared by a traditional solid state reaction.The effect of Co₂O₃ on phase structure and dielectric properties was studied..The results show that second phase appears in the Ba (Ti_0.91Zr_0.09) O₃ doped with Co₂O₃ ceramic, and the second phase reduces with the increase in Co₂O₃ content.The ferroelectric dispersion behavior appears in ceramic and dispersion characteristic is clearer when Co₂O₃ content increases.When x equals 0.01, the coercive field is maximum.