Research & Reviews : Journal of Physics
Volume 2, Issue 3 (2013)
Published
Table of contents
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Deconvolution of X-ray Diffraction Spectrum of Polypropylene
Abstract: Deconvolution methods have been used to evaluate degree of crystallinity and particle size from diffractogram of polypropylene(PP). The deconvolution method is used to separate the various peaks from the total XRD spectrum and it is successful in separating the crystalline, amorphous and background regions of a diffractogram. The degree of crystallinity of PP is calculated to be 49%. The particle size of crystallites in different crystalline phase is calculated using …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 3, 2013 · pp. 1–4 Read article
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Structural and Dielectric Properties Hexaferrite/Poly (Vinyl Alcohol) Composites
Abstract: Magnetic barium cobalt hexaferrite particles-PVA composites with of different mass ratio: 9:1, 8:2, 7:3, 6:4 and 5:5 were prepared. Structural properties of the composites were characterized by Infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscope (SEM). The effect of the concentration of Ba2Co2Fe28O46 hexaferrites on structural and dielectric properties of magnetic-PVA composites were investigated. FTIR result revealed that composite samples show absorption peaks of both ferrites and PVA. …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 3, 2013 · pp. 10–19 Read article
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Orientation of Easy Axis of Ferromagnetic Films as Explained by Third Order Perturbed Heisenberg Hamiltonian
Abstract: The third order perturbed Heisenberg Hamiltonian has been applied to explain themagnetic easy axis orientation. Ferromagnetic CoPt/AlN multilayer thin films withnumber of layers N=11, 16 and 21synthesized on fused quartz substrates using dcmagnetron sputtering technique have been employed as experimental data. According toexperimental research performed by some other researchers, easy axis of these fccstructured ferromagnetic films is oriented in the plane of the film above one particulartemperature. Average value of …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 3, 2013 · pp. 5–9 Read article