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首页> 外文期刊>Physica, B. Condensed Matter >Studies of structural, morphological, electrical, and magnetic properties of Mg-substituted Co-ferrite materials synthesized using sol-gel autocombustion method
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Studies of structural, morphological, electrical, and magnetic properties of Mg-substituted Co-ferrite materials synthesized using sol-gel autocombustion method

机译：用溶胶 - 凝胶自动燃法合成Mg取代的铁铁矿材料的结构，形态学，电磁性和磁性研究

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Abstract In this work,a nonmagnetic Mg partially substituted in CoFe2O4 was considered and has been shown to have an impact on structural, electrical and magnetic properties of ferrite materials with Co1?xMgxFe2O4 (x = 0, 0.25, 0.45, and 0.75) forms. Sol-gel synthesis route has been followed to synthesize these materials using citric acid as a fuel. Structural parameters were calculated from powder X-ray diffraction data. X-ray diffraction revealed that all the samples synthesized are pure cubic spinel structured materials with space group of Fd 3 ? m and the lattice constant varying with Mg concentration. From the field emission scanning electron microscopy (FESEM) microstructure characterizations it has been shown that the synthesized materials are well defined crystalline structured with inhomogeneous grain sizes. Besides, the grain sizes were shown to decrease with increase of Mg-content. Fourier transform Infrared (FT-IR) characterization showed the cation vibrations and stretching of other groups in the wave number range of 400–4000cm?1. The DC resistivity measurements showed an enhanced resistivity of the samples, in the order of 107 Ωcm, at the highest concentration of Mg. VSM magnetic properties analysis revealed that the Coercive force decreases with increase of Mg concentration whereas the saturation magnetization varies with Mg content. ]]>
机译：<！[cdata [ 抽象 在这项工作中，非磁性mg部分替换为cofe 2 o < CE：INF LOC =“POST”> 4 已被认为是对铁氧体材料的结构，电气和磁性的影响，具有CO 1？ X MG X FE 2 O 4> 4 （x = 0,0.25,0.45和0.75）形式。已经采用溶胶 - 凝胶合成途径使用柠檬酸作为燃料合成这些材料。从粉末X射线衍射数据计算结构参数。 X射线衍射显示，合成的所有样品都是纯的立方尖晶石结构化材料，空间组 fd 3 ？ m 和晶格常数变化Mg浓度。从现场发射扫描电子显微镜（FeSEM）微结构表征已经证明，合成材料是充分晶粒尺寸的明确定义的结晶结构。此外，晶粒尺寸随着Mg含量的增加而降低。傅里叶变换红外（FT-IR）表征显示了400-4000的波浪数范围内的阳离子振动和拉伸其他组 cm 1 。直流电阻率测量显示出样品的增强电阻率，大约10 7 ω cm，以最高浓度的mg。 VSM磁性特性分析显示，矫顽力随Mg浓度的增加而降低，而饱和磁化强度随Mg含量而变化。 ]>

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