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Experimental study of fundamental mechanisms in inductive heating of ferromagnetic nanoparticles suspension (Fe3O4 Iron Oxide Ferrofluid)
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10.1063/1.3626049
/content/aip/journal/jap/110/5/10.1063/1.3626049
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/5/10.1063/1.3626049

Figures

Image of FIG. 1.
FIG. 1.

SEM image of 50 nm particles suspended in aqueous solution.

Image of FIG. 2.
FIG. 2.

SEM image of 50 nm particles in agar gel.

Image of FIG. 3.
FIG. 3.

Hysteresis loop of 50 nm Fe3O4 particles.

Image of FIG. 4.
FIG. 4.

Sketch of experimental system.

Image of FIG. 5.
FIG. 5.

(Color online) Test tube and insulation assembly. (a): Optical temperature probe; (b): Insulation; (c): Induction coil; and (d): Ferrofluid under test.

Image of FIG. 6.
FIG. 6.

Sketch of Néel relaxation.

Image of FIG. 7.
FIG. 7.

Sketch of Brownian motion relaxation.

Image of FIG. 8.
FIG. 8.

Relaxation times vs particle size.

Image of FIG. 9.
FIG. 9.

Behavior of domain walls and magnetic dipoles of material during magnetization.

Image of FIG. 10.
FIG. 10.

SAR vs frequency in an aqueous medium at various magnetic field intensities.

Image of FIG. 11.
FIG. 11.

SAR vs magnetic field intensity in an aqueous medium at various applied frequencies.

Image of FIG. 12.
FIG. 12.

SAR vs frequency in an agar gel medium at various magnetic field intensities.

Image of FIG. 13.
FIG. 13.

SAR vs magnetic field intensity in an agar gel medium at various applied frequencies.

Image of FIG. 14.
FIG. 14.

(Color online) The normalized SAR vs frequency.

Image of FIG. 15.
FIG. 15.

(Color online) k value vs frequency.

Image of FIG. 16.
FIG. 16.

(Color online) The predictions of new model Eq. (9), classic model Eq. (4) and experimental data. Ln(SAR) vs Ln(f) frequency in water.

Image of FIG. 17.
FIG. 17.

(Color online) The predictions of new model Eq. (10), classic model Eq. (4) and experimental data. Ln(SAR) vs Ln(f) frequency in gel.

Tables

Generic image for table
Table I.

SAR summary.

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/content/aip/journal/jap/110/5/10.1063/1.3626049
2011-09-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental study of fundamental mechanisms in inductive heating of ferromagnetic nanoparticles suspension (Fe3O4 Iron Oxide Ferrofluid)
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/5/10.1063/1.3626049
10.1063/1.3626049
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