Effect of Cu Incorporation on Structure, Densification and Magnetic Properties of Polycrystalline Li<sub><i>x</i></sub>Ni<sub>0.2</sub>Zn<sub>0.8-2<i>x</i></sub>Fe<sub>2+<i>x</i></sub>O<sub>4</sub>Ceramics
Effect of Cu Incorporation on Structure, Densification and Magnetic Properties of Polycrystalline Li<sub><i>x</i></sub>Ni<sub>0.2</sub>Zn<sub>0.8-2<i>x</i></sub>Fe<sub>2+<i>x</i></sub>O<sub>4</sub>Ceramics作者机构：Department of Physics Comilla University Cumilla Bangladesh Materials Science Division Bangladesh Atomic Energy Commission Dhaka Bangladesh
出 版 物：《Journal of Applied Mathematics and Physics》 (应用数学与应用物理（英文）)
年 卷 期：2021年第9卷第12期
页 面：3211-3229页
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：Ceramics Ferrites Complex Initial Permeability Saturation Magnetization
摘 要：The polycrystalline LixNi0.2Zn0.8-2xFex+2O4 and LixNi0.1Cu0.1Zn0.8-2xFex+2O4 (x = 0.0, 0.1, 0.2, and 0.3) ferrites were synthesized by the standard solid-state reaction method. The compound was sintered at 1150˚C for 5 hours. The effect of Cu substitution and its impact on the crystal structure, microstructure, complex initial permeability and magnetization of the Ni-Zn ferrites were studied. The effect of Li+ incorporation on the properties mentioned above was also investigated. X-ray diffraction patterns of the samples indicated a single cubic spinel structure for both the compound. No effect of Cu addition on crystal structure was observed. The density of the ferrites was found to be enhanced because of adding Li whereas the porosity of the samples decreased with the content of Li ions. The average value of grain size increased with the addition of Li content. The samples having Cu ions formed bigger size grains. Frequency-dependent complex initial permeability, loss tangent, and relative quality factor were studied at room temperature using an Impedance analyzer in the range of 100 Hz - 120 MHz regions. In the low-frequency region, the prepared samples exhibited a high value of permeability and after a certain frequency, the permeability falls. The value of permeability enhanced with the increase in Li whereas loss tangent was found to be reduced. The relative quality factor graphs described that the compound has excellent frequency stability up to a certain frequency which is suitable to be used in inductors, resistors, capacitors, etc. Initial permeability for LixNi0.1Cu0.1Zn0.8-2xFex
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