Effect of Substitution of Titanium by Tin on Properties of Fe2TiO5

Effects of Tin Substitution on the Properties of Fe2TiO5 Ceramics

Abstract

In order to study the properties of the tin substituted Fe2TiO5 based materials the samples are prepared by standard ceramic technique. The single-phase formation of the pseudobrookite is confirmed by XRD technique.It is interesting to note that substitution of Ti 4+ by Sn4+ is responsible to increase the unit cell volume and X-Ray or theoretical density. On the other hand, the use of anatase in the reaction causes the decrease in practical density and the increase in the porosity, Debye particle size and the inhomogeneity. the presence of Sn4+ increases the contribution towards both the space charge as well as dipolar polarization. However, the increase in the space charge is significant.It is also interesting to note that the tin substituted samples exhibit antihystereses and Ea3< Ea2 for these samples. Hence these antihystereses are due to tunneling effect.