Synthesis and characterization of La substituted M type Calcium Hexaferrite

Volume 7 Issue 2 July - September 2019

Research Paper

Synthesis and characterization of La substituted M type Calcium Hexaferrite

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

* Department of Physics, K.E.S. Anandibai Pradhan Science College, Nagothan, Maharashtra, India.

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

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), 20-25.

Abstract

La substituted M type Calcium hexaferrite with composition CaLaxFe12-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 - 5.91Å 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 440cm-1 in FTIR confirm the formation of hexaferrite. The magnetic properties of the samples were studied by VSM. The change in magnetic parameters results make substituted hexaferrite material suitable for recording media.