磁场对铁氧体谐振器天线用MnFe2O4-SiO2复合材料的合成、结构、形貌、磁性和介电性能的影响

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-07-28 DOI:10.1016/j.mseb.2025.118635

Álison Pereira da Silva , Isaac Barros Tavares da Silva , Mirelli Soares da Silva , Leonardo Oliveira de Sousa , Meirielle Marques de Góis , Luan Fabson da Silva Sousa , João Maria Soares

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引用次数: 0

摘要

以天然矿石为原料，采用固相反应法制备了铁酸锰和三氧体（MnFe2O4-SiO2）复合材料。两个球团在370 MPa下被压实：一个被2T磁场矢量化，另一个没有磁场影响，都在1200°C下烧结12小时。得到了一个三角形的几何形状，MnFe2O4晶体嵌入在SiO2基体中，同时晶粒尺寸减小。我们还研究了磁场如何影响复合材料在铁氧体谐振器天线（FRA）中的性能。给出了FRA反射系数的测量结果，并与模拟结果进行了比较。模拟共振频率与实测共振频率的差异小于0.13%。模拟的辐射模式在样品之间略有变化，矢量化样品在宽方向上的最小增益为3.7 dBi。

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Effects of magnetic field on the synthesis, structure, morphology, and magnetic and dielectric properties of the MnFe2O4-SiO2 composite for application as a ferrite resonator antenna

We produced manganese ferrite and tridymite (

Mn {Fe}_{2} O_{4} - S i O_{2}

) composites from natural ores using the solid-state reaction method. Two pellets were compacted at 370 MPa: one vectorized by a 2T magnetic field and the other without magnetic influence, both sintered at 1200 °C for 12 h. A triangular geometry was obtained, with

Mn {Fe}_{2} O_{4}

crystals embedded in a

Si O_{2}

matrix, along with a reduction in crystallite size. We also investigated how the magnetic field influences the composite’s behavior in the performance of a Ferrite Resonator Antenna (FRA). FRA reflection coefficient measurements were presented and compared with simulations. The difference between the simulated and measured resonance frequency was less than 0.13 %. Simulated radiation patterns showed slight variation between the samples, with a minimum gain of 3.7 dBi in the broadside direction for the vectorized sample.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.