Novel processing and magnetic properties of hematite/maghemite nano-particles
作者： N.M. Deraz , A. Alarifi
DOI: 10.1016/J.CERAMINT.2011.12.081
关键词: Metallurgy 、 Combustion 、 Oxide 、 Nanoparticle 、 Materials science 、 Maghemite 、 Ferric 、 Chemical engineering 、 Crystallite 、 Hematite 、 Morphology (linguistics)
摘要: Abstract Hematite/maghemite nano-particles were synthesized by combustion method using different ratios of fuel. Effects these on crystalline phases, crystallite size, morphological and magnetic properties the have been investigated. The products characterized XRD, SEM EDX techniques. Magnetic as prepared evaluated a vibrating sample magnetometer. X-ray diffraction analysis indicates that low content fuel promotes formation alpha ferric oxide, whereas high this produces gamma oxide with oxide. Varied morphology for glycine-treated samples compared to untreated specimen was observed. treatment glycine brought about an increase in concentration species at solids shown from analysis. However, mixture containing hematite/maghemite led better depending upon presence maghemite crystallites.
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