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应用科学学报 ›› 1994, Vol. 12 ›› Issue (3): 203-208.

• 论文 • 上一篇    下一篇

从微观结构探讨Nb2O5含量对NiZnCu铁氧体电磁性能的影响

陈亚杰, 高伟建, 金宗明   

  1. 苏州大学
  • 收稿日期:1992-03-07 修回日期:1992-11-27 出版日期:1994-09-30 发布日期:1994-09-30

INFLUENCE OF THE MICROSTRUCTURE OF Nb2O5-DOPEDNiZnNc FERRITES ON THE ELECTRICAL AND MAGNETIC ROPERTIES OF THE FERRITES

CHEN YAJIE, GAO WEIJIAN, JIN ZONGHING   

  1. Suzhou University
  • Received:1992-03-07 Revised:1992-11-27 Online:1994-09-30 Published:1994-09-30

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摘要： 在基本配方Ni0.3Zn0.7Cu0.04Fe2.04O4+δ中,掺入不同含量的Nb2O5,将使材料的微观结构产生明显的变化,而这种结构的变化是导致材料性能改变的主要原因.实验表明:Nb2O5既能促进烧结,又能阻滞巨晶生长,并能有效地提高材料的烧结密度和电阻率;对晶格常数、起始磁导率和磁损耗均产生了很大的影响.文中还讨论了Nb2O5含量对烧结机制的作用,和分析了Nb2O5含量对材料电磁性能的影响.

关键词: 铁氧体, 微观结构, Nb2O5, NiZnCu铁氧体

Abstract: This paper investigates the effects of dopant on sintering and the properties of NiZnCu ferrite. There are marked changes in the microstructures of Ni0.3Zn0.7Cu0.04Fe2.04O4+δ doped with various Nb2O5 contents.It is possible that the change in the microstructure is the main reason for the variations of other properties.The-experiments reveal that Nb2O5 can improve the sintering process and protect the-grain from enormous growth, Nb5+ ion can influence the lattice parameter,resistivity, density, initial permeability and magnetic loss.

Key words: Nb2O5, NiZnCu ferrite, microstructure, ferrite