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Title: Electromagnetic properties of samarium-Substituted NiCuZn Ferrite prepared by Auto-Combustion Method
Authors: Roy, P K
Bera, J
Keywords: Ceramic
Soft ferrite
Sm substitution
NiCuZn ferrite
Electromagnetic property
Issue Date: 2009
Publisher: Elsevier
Citation: Journal of Magnetism and Magnetic Materials Volume 321, pages 247–251, 2009
Abstract: Ni0.25Cu0.2Zn0.55SmxFe2xO4 ferrite with x ¼ 0.00, 0.025, 0.05 and 0.075 compositions were synthesized through the nitrate–citrate auto-combustion method. These powders were calcined, compacted and sintered at 900 1C for 4 h. Effect of Sm substitution on phase composition, microstructure and relative density were studied. Permeability, magnetic loss and AC resistivity were measured in the frequency range of 1 kHz–10 MHz. Permeability and AC resistivity were found to increase and loss decreased with Sm substitution up to x ¼ 0.05. Saturation magnetization also increased up to that substitution limit.Observed variations in electromagnetic properties have been explained.
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