电子元件与材料2017，Vol.36Issue(1)：21-26,6.DOI:10.14106/j.cnki.1001-2028.2017.01.004
Ce添加对Mn-Al基合金微波吸收性能的影响
Effect of Ce substitution on microwave absorbing properties of MnAl powder
摘要
Abstract
MnAlalloy powder was prepared by the process of vacuum levitation melting and high-energy ball milling. The morphology and phase structure of the powder were analyzed byscanning electron microscope(SEM), X-ray diffraction(XRD) and the effect of the Ce substitution on microwaveabsorbing properties of MnAl powder was investigated by an vector network analyzer. The results show that withtheincreasing of Ce content, the Al8Mn4Ce phase increases.Meanwhile, the resonant frequency ofimaginary part of complex dielectric constant(ε″),imaginary part of complex permeability(μ″)andreflection loss(R)of powder move toward low frequency region. The minimum reflectivity of Al8Mn4Cepowderis about–26.9 dB with a coating thickness of 1.8 mm.关键词
MnAlCe粉体/高能球磨/电磁参数/微波吸收特性/吸波材料/反射率Key words
MnAlCe powder/high-energyball milling/electromagneticparameters/microwave-absorbing properties/absorbing material/reflectivity分类
信息技术与安全科学引用本文复制引用
王振中,林培豪,潘顺康,罗家亮,乔自强..Ce添加对Mn-Al基合金微波吸收性能的影响[J].电子元件与材料,2017,36(1):21-26,6.基金项目
广西自然科学基金资助（No.2013GXNSFAA019295）；国家自然科学基金资助 （）
