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Experimental study of fundamental mechanisms in inductive heating of ferromagnetic nanoparticles suspension (Fe_3O_4 Iron Oxide Ferrofluid)

机译:铁磁性纳米颗粒悬浮液(Fe_3O_4氧化铁铁磁流体)感应加热基本机理的实验研究

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摘要

An experimental investigation of the initial heating rate of 50 nm ferromagnetic nanoparticles (Fe_3O_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.
机译:对悬浮在水中并掺入琼脂凝胶中的50 nm铁磁纳米粒子(Fe_3O_4)的初始加热速率进行了实验研究,以研究布朗运动和磁滞损耗所产生的热效应。将粒子置于交流磁场中,频率范围为161至284 kHz,强度为28.6、35.8、38.9和43.0 kA m〜(-1)。计算了基于加热速率的比吸收率,并对布朗运动和磁滞损耗的贡献进行了比较和分析。

著录项

  • 来源
    《Journal of Applied Physics》 |2011年第v110n5期|p.054303.1-054303.10|共10页
  • 作者单位

    Department of Mechanical Engineering, Villanova University, Philadelphia, Pennsylvania 19085, USA,Department of Mechanical, Industrial, and Manufacturing Engineering, The University of Toledo, Toledo,Ohio 43606, USA;

    Department of Mechanical, Industrial, and Manufacturing Engineering, The University of Toledo, Toledo,Ohio 43606, USA;

    The G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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  • 入库时间 2022-08-17 13:58:38

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