STRUCTURAL, MORPHOLOGICAL AND MAGNETIC STUDIES OF α-Fe2O3 MILLED POWDERS
| Author(s) | : | B.Nirmala, A.Priya, C.Kamali, M.Kaleeswari |
| Institution | : | Associate Professor, Department of Physics, Sri GVG Visalakshi Collehge for Women, Udumalpet |
| Published In | : | Vol. 4, Issue 17 — January 2017 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Magnetic nanoparticles exhibit unique nanoscale properties and their utilization for various magnetic systems is ofsignificant interest. Hematite (α- Fe2O3) is the most stable iron oxide used for catalysts, electrodes, gas sensors, and photocatalytic and anticorrosion protective paints. In the present experimental work α-Fe2O3 Nanoparticles were synthesized byball milling process of α-Fe2O3 and milled for different time intervals and were annealed at 1000o C for 3 hours. Thesamples were characterised by X-ray diffraction, Scanning Electron Microscopy and Vibrating Sample Magnetometer. Thestructural analysis revealed rhombohedral structure of the samples. The SEM micrographs of as cast and annealed samplerevealed plate like structure of particles having variuos sizes ranging from 19 µm to 146 µm. The magnetic studies of thesamples showed a linear relationship between grain size and coercivity indicating a strong ferromagnetic behavior of thesamples.
B.Nirmala, A.Priya, C.Kamali, M.Kaleeswari, “STRUCTURAL, MORPHOLOGICAL AND MAGNETIC STUDIES OF α-Fe2O3 MILLED POWDERS”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 17, pp. -, January 2017.
