STRUCTURAL AND MORPHOLOGICAL STUDIES OF NOVEL NANOSTRUCTURED η-Al2-xFexO3
M.H. Jasimin, N. Kamarulzaman*, N. Badar, N. A.Abdul Rahman and R. Rusdi
AbstractSTRUCTURAL AND MORPHOLOGICAL STUDIES OF NOVEL NANOSTRUCTURED
M.H. Jasimin1,2, N. Kamarulzaman1,2*, N. Badar 1,2, N. A.Abdul Rahman1,2 and R. Rusdi1,2
1 Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
2 Centre for Nanomaterials Research, Institute of Science, Level 3 Block C, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
The development of new materials represents a new and fast evolving application in materials research . In this work, the substitution of Al with Fe to produce novel η-Al1.9Fe0.1O3 and η- Al1.7Fe0.3O3 nanopowders was done via the combustion method. The materials then have been annealed at 750 °C for 72 hours. It is found that the structural and morphological changes of these materials are affected by different mole ratios of Fe doping on η-Al2O3 were extensively investigated by X-Ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-Ray spectroscopy (EDX). Electron microscopy is a very important method to study the morphology of nanomaterials . It can give not only the appearance on shape of the nanocrystals but also, particle size and an idea of the agglomeration or aggregation of the crystallites . Another important technique in microscopy is the so called low angle backscattered electron (LABE) imaging. This technique is sensitive to the average atomic number of molecules and will enable scientists to distinguish between phases just by looking at the contrast . LABE imaging of the samples confirms the multiphase of one of the samples.
Keywords: Low angle backscattered electrons (LABE), scanning electron microscope (SEM), doped η-Al2O3