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首页> 外文期刊>International Journal of Applied Engineering Research >Effect of dopant Concentration and Heat Treatment on Morphological and Dielectric Properties of Rare Earth Substituted Strontium Hexaferrite Nanoparticles
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Effect of dopant Concentration and Heat Treatment on Morphological and Dielectric Properties of Rare Earth Substituted Strontium Hexaferrite Nanoparticles

机译：掺杂剂浓度及热处理对稀土取代锶六粒子型六氢粒子形态学和介电性能的影响

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摘要

An M-type strontium hexaferrite (SrFe_(12)O_(19)) powder is synthesized using chemical method of co-precipitation. The synthesized material is calcined at a temperature of 800°C for a period of 4 hrs. The green pellets were then exposed to sintering temperature of 1200°C for dielectric characterization. The pattern of XRD analysis of sample confirms the hexagonal formation of nano-structured samples. An increase in the saturation magnetization values was continuously observed with the increase in terbium ion concentration. However, the coercivity initially decreases and then increases with dopant concentration. The dielectric constant, dielectric loss and loss tangent was also observed after the heat treatment to the sample. It was conferred that exhibiting these qualities, the synthesized nanomaterials may be considered beneficial for recording media, applications in radio and millimeter wave frequency and permanent magnets.
机译：使用共沉淀的化学方法合成M型六氟锶（SRFE_（12）O_（19））粉末。 合成材料在800℃的温度下煅烧4小时。 然后将绿色粒料暴露于1200℃的烧结温度以进行介电表征。 样品的XRD分析模式证实了纳米结构样品的六边形形成。 随着铽离子浓度的增加，连续观察饱和磁化值的增加。 然而，矫顽力最初降低，然后用掺杂剂浓度增加。 在对样品的热处理后，还观察到介电常数，介电损耗和损耗切线。 它被赋予了表现出这些品质，合成的纳米材料可以被认为是有益的记录介质，在无线电和毫米波频和永磁体中的应用。

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