Experimental study of fundamental mechanisms in inductive heating of ferromagnetic nanoparticles suspension (Fe3O4 Iron Oxide Ferrofluid)

被引：21

作者：

Li, Calvin H. ^{[1
,2
]}

Hodgins, Paul ^{[2
]}

Peterson, G. P. ^{[3
]}

机构：

[1] Villanova Univ, Dept Mech Engn, Philadelphia, PA 19085 USA

[2] Univ Toledo, Dept Mech Ind & Mfg Engn, Toledo, OH 43606 USA

[3] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 05期

关键词：

MAGNETIC NANOPARTICLES; NEEL RELAXATION; AC-LOSSES; HYPERTHERMIA; PARTICLES; CANCER; DOMAIN; FIELD; AGENT; FLUID;

D O I：

10.1063/1.3626049

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An experimental investigation of the initial heating rate of 50 nm ferromagnetic nanoparticles (Fe(3)O(4)) suspended in water and incorporated in an agar gel was conducted to study the thermal heating effects resulting from Brownian motion and hysteresis losses. Particles were placed in an alternating current magnetic field with intensities of 28.6, 35.8, 38.9, and 43.0 kA m(-1), at frequencies ranging from 161 to 284 kHz. The specific absorption rate based on the heating rate was calculated and the contributions from the Brownian motion and hysteresis losses are compared and analyzed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3626049]

引用

页数：10

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