Noorhana Yahya
Not Available
Mansor Hashim
Not Available
Rabaah Syahidah Azis
Not Available
Norlaily Muhammad Saiden
Not Available
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.
PDF References Citation
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
DOI: 10.3923/jas.2002.1029.1031
URL: https://scialert.net/abstract/?doi=jas.2002.1029.1031