Influence of High Sintering Temperature Variation on Crystal Structure and Morphology of Nd1.2FeO3 Oxide Alloy Material by Solid-State Reaction Method

Abstract

Nd1.2FeO3 powders type perovskite structure was prepared by a solid-state reaction method. This research has been conducted with the recurring heating process at high temperature. The raw material consisted of Nd2O3 (99.99 %) and Fe2O3 (99.99 %) which characterized by XRD to confirm the phase and using SEM to identify the morphology structure of the sample. Result characterized by XRD confirms the phase of NdFeO3 and Nd2O3 with the formation of NdFeO3 having the orthorhombic structure (perovskite type). The value of FWHM and the average crystal size of NdFeO3 was obtained for each sample is 0.20° and 409 nm. While SEM studies showed the surface morphology of Nd1.2FeO3 has homogeneous granules with grain size estimates is 0.2 μm. These results indicate that sample Nd1.2FeO3 was a good candidate for gas sensor materials.