Co2+ Substituted Spinel MgCuZn Ferrimagnetic Oxide: A Highly Versatile Electromagnetic Material via a Facile Molten Salt Route

Nanomaterials

Ayman Nafady¹  Mohd Ubaidullah¹  MohammedA. Al-Abdrabalnabia¹  AbdullahM. Al-Enizi¹  ShoyebmohamadF. Shaikh¹  MohaseenS. Tamboli²  RahulC. Kambale³  LankeshwarM. Thorat⁴  DigambarY. Nadargi⁴  ShardS. Suryavanshi⁴ 

[1] Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;Department of Chemistry, Hanyang University, Seongdong-gu, Seoul 04763, Korea;Department of Physics, Savitribai Phule Pune University, Pune 411007, India;School of Physical Sciences, Punyashlok Ahilyadevi Holkar Solapur University, Solapur 413255, India;

关键词: MgCoCuZn ferrites;    molten salt route;    magnetic properties;    initial permeability;    electric properties;   

DOI  :  10.3390/nano10122333

来源: DOAJ

【 摘 要 】

We report on the electromagnetic properties of Co²⁺ substituted spinel MgCuZn ferrites developed via a facile molten salt synthesis (MSS) route. The choice of synthesis route in combination with cobalt substitution led to strong electromagnetic properties such as high saturation magnetization (i.e., 63 emu/g), high coercivity (17.86 gauss), and high initial permeability (2730), which are beneficial for the multilayer chip inductor (MLCI) application. In a typical process, the planned ferrites were synthesized at 800 °C using sodium chloride as a growth inhibitor, with dense morphology and irregularity in the monolithicity of the grains. The compositional analysis of as-prepared ferrite confirms the presence of desired elements with their proportion. The crystallite size (using X-ray diffraction (XRD) analysis) for different samples varies in the range of 49–51 nm. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis showcases the compact morphology of the developed samples, which is typical in the ferrite system. The dielectric properties (dielectric-loss and dielectric-constant) in the frequency range of 100Hz–1MHz suggest normal dielectric distribution according to interfacial polarization from Maxwell–Wagner. From the developed ferrites, upon comparison with a low dielectric loss with high permeability value, Mg-Cu-Zn ferrite with Co = 0.05 substitution proved to be a stronger material for MLCIs with high-performance applications.

【 授权许可】

Unknown