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首页> 外文期刊>Materials Science and Engineering. B, Solid-State Materials for Advanced Technology >Cofiring behavior and interfacial structure of NiCuZn ferrite/PMN ferroelectrics composites for multilayer LC filters
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Cofiring behavior and interfacial structure of NiCuZn ferrite/PMN ferroelectrics composites for multilayer LC filters

机译:多层LC滤波器NiCuZn铁氧体/ PMN铁电复合材料的共烧行为和界面结构

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摘要

The cofiring behavior, interfacial structure and cofiring migration between NiCuZn ferrite and lead magnesium niobate (PMN)-based relaxor ferroelectric materials were investigated via thermomechanical analyzer (TMA), X-ray diffractometer (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Mismatched sintering shrinkage between NiCuZn ferrite and PMN was modified by adding an appropriate amount of sintering aids, Bi_2O_3, into NiCuZn ferrite. Pyrochlore phase appeared in the mixture of NiCuZn ferrite and PMN, which is detrimental to the final electric properties of LC filters. EDS results indicated that the interdiffusion at the heterogeneous interfaces in the composites, such as Fe, Pb, Zn, existed which can strengthen combinations between ferrite layers and ferroelectrics layers.
机译:通过热机械分析仪(TMA),X射线衍射仪(XRD),扫描电子显微镜(SEM)和能量色散研究了NiCuZn铁氧体与铌酸铅镁(PMN)基弛豫铁电材料之间的共烧行为,界面结构和共烧迁移X射线光谱(EDS)。通过在NiCuZn铁氧体中添加适量的烧结助剂Bi_2O_3,可以改变NiCuZn铁氧体与PMN之间不匹配的烧结收缩率。烧绿石相出现在NiCuZn铁氧体和PMN的混合物中,这不利于LC滤波器的最终电性能。 EDS结果表明,在复合材料中,Fe,Pb,Zn等异质界面处存在相互扩散,可以增强铁素体层与铁电层之间的结合。

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