Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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A Study of Electromagnetic Properties on Magnetic Fluids

Magnetic Fluid의 전자기적 특성 연구

  • Published : 2004.09.01
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Abstract

Magnetite was prepared by wet method and oil-based magnetic fluid also was prepared by its magnetite. Ahead of making magnetite, we investigated the variation of physical properties for changing $Fe^{3+}/Fe^{2+}$. Through the variation of the process mixing time, pH, magnetite content, we made magnetic fluid of magnetite. We examined the magnetic and frequency property by a toroidal mold. In result $Fe^{3+}/Fe^{2+}=1.2$, over the minute mixing time property of magnetite, Ms was 61.98 emu/g. Moreover, the B-H loop result indicated that the magnetic fluid followed paramagnetic behavior.

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