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首页> 外文期刊>Japanese journal of applied physics >Permittivity Change of NiZn Ferrite-BaTiO_3 Composites with Fe Content
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Permittivity Change of NiZn Ferrite-BaTiO_3 Composites with Fe Content

机译：Fe含量的NiZn铁氧体-BaTiO_3复合材料的介电常数变化

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摘要

Ceramic composites were fabricated from powder mixtures of BaTiO_3 and Ni_(0.3)Zn_(0.7)Fe_x0_(4±δ)δNi_(0.3)Zn_(0.7)Fe_x0_(4±δ) with different Fe contents of x = 1.8,1.9, 2.0, 2.1, and 2.2 to examine trie effect of Fe content on the dielectric permittivity (ε_r) of the composite samples (these are referred to as Fe1.8, Fe1.9, Fe2.0, Fe2.1, and Fe2.2 composites or samples, respectively). The ε_r values of the composites were greatly affected by the Fe content such that a small ε_r value of the Fe1.8 composite sample steeply increased with increasing Fe content by about three orders of magnitude for the Fe2.1 and Fe2.2 samples. The strong Fe content dependence could be correlated with the incorporation of Ti~(4+) ions into the octahedral sublattices in the ferrite structure. Therefore, the markedly increasing s, values for the Fe2.1 and Fe2.2 composite samples can be attributed to the presence of Fe~(2+) ions synergetically created by the Ti-substitution and Fe-rich eomposition.
机译：陶瓷复合材料是由BaTiO_3和Ni_（0.3）Zn_（0.7）Fe_x0_（4±δ）δNi_（0.3）Zn_（0.7）Fe_x0_（4±δ）的粉末混合物制成的，其中不同的Fe含量分别为x = 1.8、1.9、2.0 ，2.1和2.2，研究铁含量对复合材料样品（称为Fe1.8，Fe1.9，Fe2.0，Fe2.1和Fe2.2复合材料）的介电常数（ε_r）的影响或样本）。 Fe含量极大地影响了复合材料的ε_r值，因此对于Fe2.1和Fe2.2样品，Fe1.8复合样品的较小ε_r值随Fe含量增加约三个数量级而急剧增加。铁含量依赖性强可能与铁素体结构中Ti〜（4+）离子掺入八面体亚晶格有关。因此，Fe2.1和Fe2.2复合样品的s，值显着增加可归因于通过Ti置换和富Fe合成协同产生的Fe〜（2+）离子。

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  • 来源
    《Japanese journal of applied physics》 |2009年第9issue2期|09KC04.1-09KC04.6|共6页
  • 作者

    Kazutomo Abe; Naoto Kitahara; Mikio Higuchi; Junichi Takahashi;

  • 作者单位

    Division of Materials Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan;

    Department of System Electronics and Information Technology, Faculty of Engineering, Tokyo Polytechnic University, Atsugi, Kanagawa 243-0297, Japan;

    Division of Materials Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan;

    Division of Materials Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan;

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