Structural analysis of Sm{sup 3+} doped nanocrystalline Mg-Cd ferrites prepared by oxalate co-precipitation method

Journal Article · Sun Nov 15 00:00:00 EST 2009 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2009.06.010· OSTI ID:22066142

Shinde, T J ^[1]; Vasambekar, P N ^[2]

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1. Department of Physics, KRP Kanya Mahavidylaya, Isalampur, 415409 (India)
2. Department of Electronic, Shivaji University, Kolhapur, 416 004 (India)

The structural properties of polycrystalline Sm{sup 3+} doped Mg{sub 1} {sub -} {sub x}Cd{sub x} Fe{sub 2}O{sub 4} (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) have been investigated by oxalate co-precipitation method from high purity sulphates. The samples were sintered at 1050 deg. C for a duration of 5 h. The X-ray diffraction measurements confirmed the formation of a cubic spinel structure. The different parameters like lattice constant, X-ray density, physical density, porosity, crystallite size, site radii and bond length on tetrahedral and octahedral sites have been calculated. The lattice constant increases with an increase in Cd{sup 2+} content and shows non linear behavior. The crystallite size was calculated using Scherrer formula and varies from 28.69 to 32.05 nm. Physical densities were obtained by Archimedes principle. The surface morphology studied by scanning electron microscope shows that the grain size of the samples increases with an increase in Cd{sup 2+} content. The IR spectra show two strong absorption bands around 5.87 x 10{sup 4} m{sup -1} and 4.27 x 10{sup 4} m{sup -1} on the tetrahedral and octahedral sites respectively. IR spectra also show that Sm{sup 3+} occupies the octahedral B-site.

• OSTI ID: 22066142
• Journal Information: Materials Characterization, Vol. 60, Issue 11; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
BOND LENGTHS
CADMIUM COMPOUNDS
CADMIUM IONS
COPRECIPITATION
CUBIC LATTICES
DENSITY
DOPED MATERIALS
FERRITES
GRAIN SIZE
INFRARED SPECTRA
LATTICE PARAMETERS
MAGNESIUM COMPOUNDS
MORPHOLOGY
NANOSTRUCTURES
POLYCRYSTALS
POROSITY
SAMARIUM IONS
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION