Electromagnetic and microwave absorbing properties of FeCoB powder composites
来源期刊：Rare Metals2013年第4期
论文作者：Shen-Gen Zhang Hang-Xin Zhu Jian-Jun Tian De-An Pan Bo Liu Yan-Tao Kang
文章页码：402 - 407
摘 要：The electromagnetic and microwave absorbing properties of FeCoB powder composites prepared by single-roller melt-spinning and mechanical milling processes were investigated in this paper.The result indicates that the flake-like powders are obtained.As milling time increases,the flake-like powder particles tend to agglomerate,causing the flake-like powders decrease gradually.The milling time plays an important role in the electromagnetic parameters which relates to the shape and size of the powder particles.The calculation shows that the sample milled for 6 h could achieve an optimal reflection loss of-11.5 dB at 5.8 GHz,with mass fraction of 83%and a matching thickness of1.8 mm.The result also indicates that the microwave absorbing properties of the FeCoB powder composites are adjustable by changing their thickness,and can be applied as a thinner microwave absorbing material in the range of2–8 GHz.
Shen-Gen Zhang，Hang-Xin Zhu，Jian-Jun Tian，De-An Pan，Bo Liu，Yan-Tao Kang
Advanced Material and Technology Institute, University of Science and Technology Beijing
摘 要：The electromagnetic and microwave absorbing properties of FeCoB powder composites prepared by single-roller melt-spinning and mechanical milling processes were investigated in this paper.The result indicates that the flake-like powders are obtained.As milling time increases,the flake-like powder particles tend to agglomerate,causing the flake-like powders decrease gradually.The milling time plays an important role in the electromagnetic parameters which relates to the shape and size of the powder particles.The calculation shows that the sample milled for 6 h could achieve an optimal reflection loss of-11.5 dB at 5.8 GHz,with mass fraction of 83%and a matching thickness of1.8 mm.The result also indicates that the microwave absorbing properties of the FeCoB powder composites are adjustable by changing their thickness,and can be applied as a thinner microwave absorbing material in the range of2–8 GHz.
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