Application of laser speckle interferometry for the study of Co sub(x)Fe sub((1-x))Fe sub(2)O sub(4) magnetic fluids

Co sub(x)Fe sub((1-x)))Fe sub(2)O sub(4) (x = 0, 0.25, 0.50, 0.75 and 1 mol) nanoparticles and magnetic fluids less than 50 nm in diameter were prepared by the chemical co-precipitation method. X-ray diffraction and transmission electron microscopy were used to determine the average particle size an...

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Bibliographic Details
Published in:Physica scripta 2012-07, Vol.86 (1), p.1-7
Main Authors: El Ghandoor, H, Zidan, H M, Khalil, Mostafa M H, Ismail, M I M
Format: Article
Language:English
Subjects:
Coprecipitation
Diffraction
Lasers
Magnetic fluids
Moire fringes
Nanoparticles
Speckle interferometry
X-rays
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Summary:Co sub(x)Fe sub((1-x)))Fe sub(2)O sub(4) (x = 0, 0.25, 0.50, 0.75 and 1 mol) nanoparticles and magnetic fluids less than 50 nm in diameter were prepared by the chemical co-precipitation method. X-ray diffraction and transmission electron microscopy were used to determine the average particle size and morphology of the prepared samples. The laser speckle interferometry technique was used to investigate the effect of the concentrations of Co sub(x)Fe sub((1-x)))Fe sub(2)O sub(4) (x = 0, 0.25, 0.50, 0.75 and 1 mol) magnetic fluids. This was displayed through the variation of the number of moire fringes obtained due to superposition of identical speckle patterns.
ISSN:0031-8949
1402-4896
DOI:10.1088/0031-8949/86/01/015403