Affiliation:
1. Universidade Federal do Ceará – UFC
Abstract
The study of ceramic materials has attracted the attention of many researchers due to the possibility of their use in nanotechnology. The spinel ferrites form a large group of materials with a broad range of applications. Some examples include electronic devices such as high-frequency transformer cores, antenna rods, induction-tuners, among many others. However, when the ferritic materials display superparamagnetic behavior, their potential for biological applications like drug delivery, hyperthermia, resonance magnetic imaging and magnetic separation, become amazingly high. Therefore, the superparamagnetism is a characteristic strongly desired for spinel ferrites. Since this phenomenon is size-dependent, the methodologies to synthesize these materials has emerged as a crucial step in order to obtain the desired properties. In this regarding, several synthetic processes have been developed. For example, co-precipitation is a fast and cheap method to synthesize superparamagnetic spinel ferrites. However, methodologies involving microwave, ultrasound or polymers frequently result in these kind of materials. Therefore, this review brings a brief historic introduction about spinel ferrites as well as essential concepts to understand their structure and magnetic properties. In addition to this, recent advances in synthesis and applications of the superparamagnetic spinel ferrites are mentioned. Contents of Paper
Publisher
Trans Tech Publications, Ltd.
Subject
Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics
Reference172 articles.
1. M. Sugimoto, The Past, Present, and Future of Ferrites, Journal of the American Ceramic Society 82 (1999) 269-280.
2. R. Valenzuela, Magnetic ceramics, Cambridge University Press, (1994).
3. S. Hilpert, V. Verf, Genetische und konstitutive Zusammenhänge in den magnetischen Eigenschaften bei Ferriten und Eisenoxyden, Berichte der deutschen chemischen Gesellschaft 42 (1909) 2248-2261.
4. Y. Kato, T. Takei, Characteristics of Metallic Oxide Magnet, Journal of Institute of Electrical Engineers of Japan 53 (1933) 408-412.
5. T. Takei, T. Yasuda, S. Isshibara, On the High-Temperature Magnetization of Ferrites, Eletrotech. J 4 (1940) 75-79.
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