BiNbO4掺杂对BaTiO3陶瓷居里点的影响及微观性能研究

佘广益, 张树人, 唐斌, 周晓华

佘广益, 张树人, 唐斌, 周晓华. BiNbO4掺杂对BaTiO3陶瓷居里点的影响及微观性能研究[J]. 材料开发与应用, 2009, 24(3): 31-34. DOI: 10.19515/j.cnki.1003-1545.2009.03.009
引用本文: 佘广益, 张树人, 唐斌, 周晓华. BiNbO4掺杂对BaTiO3陶瓷居里点的影响及微观性能研究[J]. 材料开发与应用, 2009, 24(3): 31-34. DOI: 10.19515/j.cnki.1003-1545.2009.03.009
SHE Guang-yi, ZHANG Shu-ren, TANG Bin, ZHOU Xiao-hua. Influence of BiNbO4 Doping on Shift of Curie Point and Micro-properties of Barium titanate Ceramics[J]. Development and Application of Materials, 2009, 24(3): 31-34. DOI: 10.19515/j.cnki.1003-1545.2009.03.009
Citation: SHE Guang-yi, ZHANG Shu-ren, TANG Bin, ZHOU Xiao-hua. Influence of BiNbO4 Doping on Shift of Curie Point and Micro-properties of Barium titanate Ceramics[J]. Development and Application of Materials, 2009, 24(3): 31-34. DOI: 10.19515/j.cnki.1003-1545.2009.03.009

BiNbO4掺杂对BaTiO3陶瓷居里点的影响及微观性能研究

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  • 中图分类号: TM534

Influence of BiNbO4 Doping on Shift of Curie Point and Micro-properties of Barium titanate Ceramics

  • 摘要: 本文研究了BiNbO4掺杂对钛酸钡陶瓷居里点移动及微观性能的影响。实验结果表明, 随着BiNbO4掺杂量的增加, 钛酸钡陶瓷的四方率单调下降, 而居里点先降低后升高, 居里点的变化与陶瓷的微观应力变化一致。BiNbO4掺杂在0%~2%范围内时, 能有效抑制BaTiO3陶瓷晶粒的生长, 有助于陶瓷烧结的致密化, 但过分掺杂会使陶瓷晶粒间气孔率增加, 并产生第二相。
    Abstract: The influences of BiNbO4 on the shift of Curie point as well as structural and micro-structural properties of BaTiO3-based ceramics have been investigated.The experiment results showed that the tetragonality declined gradually with increasing BiNbO4, while the Curie point initially reduced, minimized at 123℃, and then increased.The variation of Curie point agreed with the change of microstrain value.When the content of BiNbO4 is in the range of 0~2 wt%, the grain growth was retarded, which was propitious to the densification of samples.However, excessive addition of BiNbO4 would produce a secondary phase and increase the porosity.
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出版历程
  • 收稿日期:  2008-11-23
  • 网络出版日期:  2024-03-29

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