![]() These are able to consist of a wide range of different combinations in close interacttion, including inorganic/inorganic, inorganic/organic, organic/inorganic, and organic/organic materials which the inorganic/inorganic interaction has utilized in this paper. The core-shell type magnetic nanoparticles can be broadly defined as comprising a core (inner material) and a shell (outer layer material). In the past decades, considerable attention has been devoted to the preparation of magnetic nanoparticles because of unique magnetic properties microwaves devices, noise filters, recording heading and sensors. It is observed that the particle size of spherical sampleis 32.5 nm. The synthesised MNPs and core shell MNP were characterized by X-ray diffraction (XRD), Thermal gravimetric-differential thermal analyzer (TG-DTA), Transmission electron microscopy (TEM), scanning electron microscopy (SEM), (EDAX) for structural, thermal and morphological respectively. Separation of the core-shell magnetic nanoparticles from the aqueous suspension using a centrifuge. Secondly the as synthesised Mg (x)Fe (1–x)O nanoparticles are used to synthesis magnetic core-shell Nano particles byusing 2-propanol, poly ethylene glycol (PEG), ammonia solution 30 wt%, tetraethyl orthosilicate (TEOS). Firstly Mg (x)Fe (1–x)O (magnesiwuestite) nano powder samples were synthesised by low temperature chemical combustion method. Magnetic core-shell nanoparticles have been widely studied because of their excellent and convenient magnetic and electrical properties.In this present work core-shell magneticnanoparticles (MNPs) were synthesized by simple chemical precipitation method. Keywords: Magnetic Nanoparticle Core-Shell TG-DTA SEM TEM Center Nano science and Technology, Institute of Science and Technology, Jawaharlal Nehru Technological University Hyderabad, Hyderabad, IndiaĮmail: Septemrevised Octoaccepted November 3, 2012
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