Impact of Bi–Cr substitution on the structural, spectral, dielectric and magnetic properties of Y-type hexaferrites
Source abstract
Abstract
Abstract Bi–Cr-substituted Y-type hexa-ferrites were prepared via a micro-emulsion method. Formation of the hexagonal phase was confirmed by X-ray diffraction (XRD) analysis. The size of the crystallites of all the samples was in the range 31.58–37.67 nm and their Fourier transform infrared (FTIR) spectroscopy bands were observed in the range ~ 450–650 cm-1. These bands indicated successful incorporation of Bi–Cr in the Y-type hexagonal ferrites. The existence of metal-oxygen bands at the tetrahedral and octahedral sites confirmed that all the prepared samples exhibit Y-type hexagonal ferrites structures. The magnetic parameters such as saturation magnetization, retentivity and coercivity revealed significant variations with the increase of Bi–Cr contents. Frequency and composition dependent variations in the dielectric constant (e′), dielectric loss (e"), tan loss, and other parameters were observed, for example the value of e′ decreased as the Bi–Cr content increased. These optimised results are highly desirable for the application of these nanosized hard ferrites in various microwave devices
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Electromagnetic wave absorption materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
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