CHARACTERIZATION AND EVALUATION OF MAGNETIC AND RHEOLOGICAL PROPERTIES OF MAGNETITE (FE3O4J NANOPARTICLES SYNTHESIZED UNDER N2 GAS AT ROOM TEMPERATURE

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TAHRIRI M.; KHOSROSHAHI M.E.

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Journal: AMIRKABIR Year:2009 | Volume:20 | Issue:70-A Page(s): 53-60

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Title

CHARACTERIZATION AND EVALUATION OF MAGNETIC AND RHEOLOGICAL PROPERTIES OF MAGNETITE (FE3O4J NANOPARTICLES SYNTHESIZED UNDER N2 GAS AT ROOM TEMPERATURE

Author(s)

TAHRIRI M. | KHOSROSHAHI M.E. | Issue Writer Certificate

Keywords

MAGNETITE NANOPARTICLESQ2

SYNTHESISQ3

RHEOLOGICAL PROPERTIESQ3

COPRECIPITATIONQ3

Abstract

In this study, magnetic (Fe3O4) nanoparticles were prepared by controlled chemical co-precipitation technique in alkine medium under N2 gas at room temperature. The obtained powders were characterized by the commonly used bulk techniques of scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infra-red (FTIR), X-ray diffraction (XRD), simultaneously analysis (STA), vibrating sample magnetometer (VSM) and BET analyses, Also the effect of some parameters on the size of Fe3O4 nanoparticles, such as stirring rate and concentration of NaOH was studied. The results indicated that smaller particles can be synthesized by increasing the stirring rate and decreasing the NaOH concentration, which in current case this corresponded to 35 nm using 0.9 M NaOH at 750 rpm.The VSM analysis showed a saturation magnetization range of (82-96 emu/g) and coercivity of (83-119 Oe) for particles between (35-96 nm), respectively. In addition, the highest specific area of 41 m2/g was obtained at 0.9 M NaOH at 750 rpm and the smallest value of 15 m2/g at 1.5 M of NaOH at 450 rpm using BET analysis. Eventually, the RHEOLOGICAL PROPERTIES of MAGNETITE NANOPARTICLES were examined and the results showed that nano-ferrofluid containing magnetite had a shear thining behavior.

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APA: Copy

TAHRIRI, M., & KHOSROSHAHI, M.E.. (2009). CHARACTERIZATION AND EVALUATION OF MAGNETIC AND RHEOLOGICAL PROPERTIES OF MAGNETITE (FE₃O₄J NANOPARTICLES SYNTHESIZED UNDER N₂ GAS AT ROOM TEMPERATURE. AMIRKABIR, 20(70-A), 53-60. SID. https://sid.ir/paper/873/en

Vancouver: Copy

TAHRIRI M., KHOSROSHAHI M.E.. CHARACTERIZATION AND EVALUATION OF MAGNETIC AND RHEOLOGICAL PROPERTIES OF MAGNETITE (FE₃O₄J NANOPARTICLES SYNTHESIZED UNDER N₂ GAS AT ROOM TEMPERATURE. AMIRKABIR[Internet]. 2009;20(70-A):53-60. Available from: https://sid.ir/paper/873/en

IEEE: Copy

M. TAHRIRI, and M.E. KHOSROSHAHI, “CHARACTERIZATION AND EVALUATION OF MAGNETIC AND RHEOLOGICAL PROPERTIES OF MAGNETITE (FE₃O₄J NANOPARTICLES SYNTHESIZED UNDER N₂ GAS AT ROOM TEMPERATURE,” AMIRKABIR, vol. 20, no. 70-A, pp. 53–60, 2009, [Online]. Available: https://sid.ir/paper/873/en

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