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Microwave absorption of electroless Ni-Co-P-coated SiO_2 powder

机译：化学镀Ni-Co-P涂层SiO_2粉末的微波吸收

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摘要

Ni-Co-P-coated SiO_2 particles were prepared using electroless plating method. The morphology, crystal structure, surface compositions, magnetic and microwave absorption properties of the composite powder were investigated by scanning electron microscopy, X-ray diffraction analysis, X-ray photoelectron spectroscopy, vibrating sample magnetometer and vector network analyzer, respectively. It was found that the silica powder was successfully coated with Ni-Co-P alloy. The ultrafine Ni-Co-P-SiO_2 powder-paraffin wax composite possesses excellent microwave absorption properties. The maximum microwave loss reaches -48.6 dB at 4.2 GHz with a thickness of 3.10 mm. The intrinsic reasons for microwave absorption were also investigated.
机译：使用化学镀方法制备了Ni-Co-P涂层的SiO_2颗粒。分别通过扫描电子显微镜，X射线衍射分析，X射线光电子能谱，振动样品磁力计和矢量网络分析仪研究了复合粉末的形貌，晶体结构，表面组成，磁和微波吸收性能。发现该二氧化硅粉末成功地被Ni-Co-P合金涂覆。 Ni-Co-P-SiO_2超细粉石蜡复合材料具有优异的微波吸收性能。在4.2 GHz下，厚度为3.10 mm的最大微波损耗达到-48.6 dB。还研究了微波吸收的内在原因。

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  • 来源
    《Applied Surface Science》 |2009年第14期|6629-6633|共5页
  • 作者

    Zhi Ma; Jianbo Wang; Qingfang Liu; Jing Yuan;

  • 作者单位

    Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, School of Physical Science and Technology, Lanzhou University, 222, South Road Tianshui, Lanzhou 730000, People's Republic of China;

    Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, School of Physical Science and Technology, Lanzhou University, 222, South Road Tianshui, Lanzhou 730000, People's Republic of China;

    Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, School of Physical Science and Technology, Lanzhou University, 222, South Road Tianshui, Lanzhou 730000, People's Republic of China;

    Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, School of Physical Science and Technology, Lanzhou University, 222, South Road Tianshui, Lanzhou 730000, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    nanoparticles; XPS; magnetic properties; microwave absorption;

    机译：纳米粒子XPS;磁性微波吸收;

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