Eltabey, M., El-Shokrofy, K., Gharbia, S. (2010). Enhancement of the Magnetic Properties of Ni-Cu-Zn Ferrites by the Non-magnetic Al3+-ions Substitution. The International Conference on Mathematics and Engineering Physics, 5(International Conference on Mathematics and Engineering Physics (ICMEP-5)), 1-9. doi: 10.21608/icmep.2010.29809

M. M. Eltabey; K. M. El-Shokrofy; S. A. Gharbia. "Enhancement of the Magnetic Properties of Ni-Cu-Zn Ferrites by the Non-magnetic Al3+-ions Substitution". The International Conference on Mathematics and Engineering Physics, 5, International Conference on Mathematics and Engineering Physics (ICMEP-5), 2010, 1-9. doi: 10.21608/icmep.2010.29809

Eltabey, M., El-Shokrofy, K., Gharbia, S. (2010). 'Enhancement of the Magnetic Properties of Ni-Cu-Zn Ferrites by the Non-magnetic Al3+-ions Substitution', The International Conference on Mathematics and Engineering Physics, 5(International Conference on Mathematics and Engineering Physics (ICMEP-5)), pp. 1-9. doi: 10.21608/icmep.2010.29809

Eltabey, M., El-Shokrofy, K., Gharbia, S. Enhancement of the Magnetic Properties of Ni-Cu-Zn Ferrites by the Non-magnetic Al3+-ions Substitution. The International Conference on Mathematics and Engineering Physics, 2010; 5(International Conference on Mathematics and Engineering Physics (ICMEP-5)): 1-9. doi: 10.21608/icmep.2010.29809

Enhancement of the Magnetic Properties of Ni-Cu-Zn Ferrites by the Non-magnetic Al3+-ions Substitution

Abstract
The effect of Al–substitution on the physical, magnetic and electrical properties of Ni–Cu–Zn ferrite of chemical formula Ni0.4Cu0.2Zn0.4AlxFe2-xO4 (x = 0 to x = 0.15 with step = 0.025) which prepared by conventional ceramic method has been studied. X-ray patterns indicated the presence of a single spinel phase. The magnetization is measured using VSM at room temperature. The initial permeability is measured, on toroidal samples used as transformer cores, as a function of temperature at constant frequency of 10 KHz and Curie temperature is determined. It was found that Al–ion substitute improved the magnetization as well as the initial permeability. The dc resistivity is also increased with increasing Al – concentration. Such results are promising ones for the high frequency applications.