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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Study of the Influence of the Surface Passivation and Insulation Technology for the Magnetic Properties of Nanocrystalline Composite Powder Cores at Middle and High Frequency
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 1558-1561)
Author(s): Jing Lu, School of Material Science and Engineering, University of Science and Technology Beijing,, Beijing ,China
Shao-ning Jiang, School of Material Science and Engineering, University of Science and Technology Beijing,, Beijing ,China
Yi Long, School of Material Science and Engineering, University of Science and Technology Beijing,, Beijing ,China
Abstract: Influence of the surface passivation and insulation technology for FeCuNbSiB amorphous powder on magnetic properties of powder core was investigated. The influence of the type and consentration of the passivation, the content of the insulation and the methods of insulation clad on the frequency quality and the high frequency core loss on the nanocrystalline composite powder cores were studied. The rate μ1MHz/μ1KHz of effective permeability of 93.9% is obtained, also a maximum level of 27 of Q at the frequency of 300kHz was observed, and 1201mw/cm3 core loss at f=100kHz and Bm=100mT was found.
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