Structural, Electrical, and Magnetic Properties of Ferrite-Reinforced PANI Composites

Journal Article · Sun Sep 15 04:00:00 EDT 2019 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/S10948-019-5046-Z· OSTI ID:22922888

Ajmal, Muhammad; Islam, M. U. ^[1]

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1. Bahauddin Zakariya University, Department of Physics (Pakistan)

A Y-type hexagonal ferrite with chemical composition CaBaCo{sub 2}In{sub 0.5}Fe{sub 11.5}O{sub 22} was prepared by a sol-gel auto combustion technique. Y-ferrite/PANI nanocomposites were prepared by in situ polymerization of PANI with general formula CaBaCo{sub 2}In{sub 0.5}Fe{sub 11.5}O{sub 22} (1-x) + PANI (x) (x = 0.30, 0.50, 0.8, and 1) with nomenclature CF1, CF2, CF3, and P respectively. The samples were characterized by X-ray diffraction (XRD) and electrical and magnetic measurements. X-ray diffraction revealed that Y-type ferrite was successfully prepared in a single phase form. DC resistivity increases with increasing ferrite filler in nanocomposites due to large resistive behavior of ferrite in conducting polymer matrix. The dielectric constant, dielectric loss, and AC conductivity decreases with the increase of ferrite content. The dielectric is high due to interfacial polarization at low frequency, and it is low at high frequency following Maxwell-Wagner model. The coercivity increases with the decrease of ferrite filler content whereas saturation magnetization and remanence decreases which is due to random distribution of ferrite filler particles in PANI matrix. Due to large coercivity and low values of ε′ and ε″, the present samples may be useful in recording media and electromagnetic shielding.

• OSTI ID: 22922888
• Journal Information: Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 9 Vol. 32; ISSN 1557-1939
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ACTIVATION ENERGY
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
COBALT COMPOUNDS
COERCIVE FORCE
DIELECTRIC MATERIALS
DISTRIBUTION
FERRITES
INDIUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIZATION
NANOCOMPOSITES
POLARIZATION
POLYMERIZATION
POLYMERS
SOL-GEL PROCESS
X-RAY DIFFRACTION