Study on γ-Fe₂O₃ Magnetic Fluid by Thermal Oxidizing of Fe₃O₄ Nanoparticles

Abstract:

In this paper, Fe₃O₄ magnetic nanoparticles were synthesized by chemical co-precipitation method and their surface was modified by sodium oleate. The γ-Fe₂O₃ magnetic nanoparticles were achieved by thermal oxidizing of Fe₃O₄. The γ-Fe₂O₃ magnetic fluid was prepared by using silicone oil as carrier liquid and oleic acid as surface modification agent, and the saturation magnetization of prepared γ-Fe₂O₃ magnetic fluid hits 14.25emu/g.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 2916-2919
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.2916
• Online since: January 2015
• Authors: Hang Zheng, Hui Ping Shao*, Zi Fen Zhao
• Keywords: Fe₃O₄ Magnetic Nanoparticles, γ-Fe₂O₃ Magnetic Fluid, γ-Fe₂O₃ Magnetic Nanoparticles

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