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Research Article
 

Low Magnetic Energy Loss Antannae for High Operating Frequencies in the Ni0.76x Mg0.04+x Ca0.005 Co0.1 Cu0.075 Zn0.04 Fe1.96O3.96 System



Noorhana Yahya, Mansor Hashim , Rabaah Syahidah Azis and Norlaily Muhammad Saiden
 
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ABSTRACT

This work is an initial response to the demand for miniaturization of electronic circuits and the shift to higher operating frequencies. Development of high-density and low-magnetic-energy loss in the Ni0.76-x Mg0.04+x Ca0.005 Co0.1 Cu0.075 Zn0.04 Fe1.96 O3.96 system, where x=0.01, 0.02,0.03 and 0.04, was carried out. A conventional ceramic processing technique based on solid-state chemical reactions was employed. A hard option, that of using low-grade production oxide powders (≈ 99.1%) was taken. The microstructure was tailored using CuO as a sintering aid. The formulation employed the Co2+ to broaden the operating frequency in the MHz region, Mg2+ to increase the electrical resistively and Ca2+ to neutralize the presence of SiO2, thus blocking the intergranular eddy currents hoppings. The air sintered (1140 ° C) material showed small-grain (≈ 2.3 μm) microstructure.

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  How to cite this article:

Noorhana Yahya, Mansor Hashim , Rabaah Syahidah Azis and Norlaily Muhammad Saiden , 2002. Low Magnetic Energy Loss Antannae for High Operating Frequencies in the Ni0.76x Mg0.04+x Ca0.005 Co0.1 Cu0.075 Zn0.04 Fe1.96O3.96 System. Journal of Applied Sciences, 2: 1029-1031.

DOI: 10.3923/jas.2002.1029.1031

URL: https://scialert.net/abstract/?doi=jas.2002.1029.1031

REFERENCES
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