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Synthesis and characterization of La substituted M type Calcium Hexaferrite

V. S. Shinde*, S. G. Dahotre**, L. N. Singh***

* Department of Physics, Konkan Education Society's Anandibai Pradhan Science College, Nagothane, Maharashtra, India.

**-*** Department of Physics, Dr. Babasaheb Ambedkar Technological University, Lonere, Maharashtra, India.

Periodicity:July - September'2019
DOI : https://doi.org/10.26634/jms.7.2.15960

Abstract

La substituted M type Calcium hexaferrite with composition CaLa_xFe_12-xO₁₉ (x=0.5, 1.0, 1.5, 2.0) were synthesized by sol gel auto combustion method. The prepared samples were characterized by XRD, SEM, EDAX, FTIR, and VSM. X ray diffraction study shows that all the species have hexagonal crystal structure with lattice constants of a =5.87 - 5.91 Å and c = 22.89 - 23.21 Å. There was increase in lattice volume with increasing La ion concentration. SEM images reveal that particles were hexagonal platelet-like shape, and the grain size increases with increase of La ion concentration. EDS measurements revealed the stoichiometric cationic ratios of the prepared samples. The absorption band between 520 cm^-1 and 440 cm^-1 in FTIR confirm the formation of hexaferrite. The magnetic properties of the samples were studied by VSM. The change in magnetic parameter results make substituted hexaferrite material suitable for recording media..

Keywords

Calcium Hexaferrite, Sol Gel Auto Combustion Method, Lattice Volume, Saturation Magnetisation, Coercivity

How to Cite this Article?

Shinde, V. S., Dahotre, S. G., and Singh, L. N. (2019). Synthesis and Characterization of La Substituted M type Calcium Hexaferrite. i-manager’s Journal on Material Science, 7(1), 10-17. https://doi.org/10.26634/jms.7.2.15960

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