Dielectric, electrical, magnetic, and mechanical properties of Ni-Al ferrite/PANI composite films

IF 1.4 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2022-09-05 DOI:10.1080/01411594.2022.2117043

E. A. Arrasheed, O. Hemeda, Y.A. Alibwaini, T. Meaz, R. Shalaby, A. Ajlouni, A. Henaish, B. Salem

引用次数: 5

Abstract

ABSTRACT The Ni-Al ferrite nanoparticles are synthesized by the flash auto-combustion method, and PANI is synthesized by the situ-chemical oxidative polymerization method. NiAl-ferrite/PANI/ x (PANI) Nanocomposite Films (x = 0.6 and 0.8) were prepared using a solution casting process. The X-ray results of the NiAlxFe2-xO4/PANI composite manifest that the Ni-Al ferrite fully interacted with PANI molecules and the Ni-Al ferrite particles are embedded in the PANI chains from TEM and SEM images. The dielectric parameters ϵ′, ϵ″ and tan δ decreased with the increase in the frequency of the applied field. The modulus M″ spectra of the investigated samples show two relaxation peaks in two frequency regions. In Cole–Cole plot of M′ versus M″, a semicircular trend is observed, i.e. a non-Debye criterion. The presence of PANI in the NiAl0.6Fe1.4O4/PANI composite films reduces the magnetic properties of the composite samples leading to the decrease of saturation magnetization and remanence magnetization.

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Ni-Al铁氧体/PANI复合薄膜的介电、电学、磁学和力学性能

摘要采用闪速自燃烧法合成了纳米镍铝铁氧体，采用原位化学氧化聚合法合成了聚苯胺。NiAl铁氧体/PANI/x（PANI）纳米复合薄膜（x = 0.6和0.8）。NiAlxFe2-xO4/PANI复合材料的X射线结果表明，从TEM和SEM图像来看，Ni-Al铁氧体与PANI分子完全相互作用，并且Ni-Al铁素体颗粒嵌入PANI链中。介电参数ε′、ε〃和tanδ随外加电场频率的增加而减小。所研究样品的模量M〃谱在两个频率区域显示出两个弛豫峰。在M′与M〃的Cole–Cole图中，观察到半圆形趋势，即非德拜准则。NiAl0.6Fe1.4O4/PANI复合膜中PANI的存在降低了复合样品的磁性能，导致饱和磁化强度和剩磁磁化强度降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.