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Soft magnetic composites of iron-phenolic and the influence of silane coupling agent on the magnetic properties

机译：铁酚类软磁复合材料及硅烷偶联剂对磁性的影响

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摘要

This paper investigates the effect of silane coupling agent on the magnetic properties of iron-phenolic soft magnetic composite materials at operating frequencies between 50 Hz and 1000 kHz. Coupling agents, cause a better wetting and a uniform coating distribution between the iron powders and the phenolic coating. The magnetic properties of the samples were measured by an LCR meter. The phase identification of coated powders was studied by XRD and the reaction of 3-aminopropyltriethoxy silane (APTS) with passived iron powders was characterized by FTIR. The results showed that the ring structure of aminosi-lane is broken up at pH ～8 and the amino groups become available for reaction with phenolic resin. It was shown that the compacted samples consist of passive/APTS/resin layers had lower loss factor and imaginary part of permeability in comparison with other samples. The difference in real part of permeability was negligible for APTS modified samples below 100 kHz.
机译：本文研究了硅烷偶联剂在50 Hz至1000 kHz的工作频率下对铁酚软磁复合材料磁性能的影响。偶联剂在铁粉和酚醛涂料之间产生更好的润湿性和均匀的涂层分布。样品的磁性能通过LCR仪测量。用XRD研究了涂层粉末的相鉴定，并通过FTIR表征了3-氨基丙基三乙氧基硅烷（APTS）与钝化铁粉的反应。结果表明，在pH〜8时，氨基硅烷的环结构被破坏，氨基可与酚醛树脂反应。结果表明，与其他样品相比，由无源/ APTS /树脂层组成的压实样品具有更低的损耗因子和虚部的磁导率。对于100 kHz以下的APTS改性样品，磁导率的实部差异可以忽略不计。

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  • 来源
    《Materials Chemistry and Physics.》 |2009年第1期|247-253|共7页
  • 作者

    A.H.Taghvaei; H. Shokrollahi; A. Ebrahimi; K.Janghorban;

  • 作者单位

    Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Iran;

    Department of Materials Science and Engineering Shiraz University of Technology, Shiraz, Iran;

    Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Iran;

    Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Iran;

  • 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
  • 中图分类
  • 关键词

    magnetic properties; FTIR; composite materials;

    机译：磁性FTIR;复合材料;

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