Synthesis and structural characterization of zinc substituted calcium W-type hexagonal ferrite

Abstract

Calcium hexaferrites are a subject of great interest due to their promising applications and narrow particle size distribution. It has good magnetic and electrical properties with very good chemical stability along with thermal stoutness with cost effectivity. From the technological point of view substitution of different types of ions was found to be an effective way of improving and enhancing the quality of material and their magnetic characteristics which can lead to various potential applications. The sample of calcium W- type hexaferrite with substitution of Zinc having composition CaZn2Fe16O27 was synthesized using Sol-Gel auto combustion route of synthesis. The enhancement in the properties of the Calcium W-type ferrite with substitution of divalent Zn2+ is not researched and recorded sufficiently. In this paper, the main cornerstone is on the effects of Zn2+ ionic substitution on the structural characteristics of this hexagonal W-type ferrite. The structural modifications of the sample were studied by using XRD and SEM techniques. XRD shows the crystal has the hexagonal structure with lattice parameters a = 5.843 A0 & c = 32.18 A0 belonging to space group P63/mmc. The surface morphology was studied and particle size was confirmed using Scanning Electron Microscope.