Preparation of magnetic nanoparticles with large specific loss power for heating applications

被引：50
|
作者：
Müller, R [1 ]
Hergt, R [1 ]
Zeisberger, M [1 ]
Gawalek, W [1 ]
机构：
[1] Inst Phys Hochtechnol, D-07745 Jena, Germany
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 289卷
关键词：
magnetic nanoparticle; glass crystallisation; ferrofluids; Neel relaxation; magnetic losses; magnetic hyperthermia;
D O I：
10.1016/j.jmmm.2004.11.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Glass crystallisation method is used as a relatively new technique for the preparation of nanocrystalline magnetic iron oxide. Properties of glassy flakes, the precursor state, prepared powders as well as a water-based ferrofluid were analysed by XRD, TEM and magnetic methods. Different contributions to specific loss power (SLP) are measured by AC-susceptometry, hysteresis loops and a calorimetric method. Values of SLP in the order of 100 W/g maghemite may be achieved with the option of further increase by improving the core size distribution. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：13 / 16
页数：4
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