Spray granulation of Fe and C nanoparticles and their impedance match for microwave absorption
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论文类型：期刊论文
发表时间：2018-03-01
发表刊物：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
收录刊物：SCIE、EI、Scopus
卷号：34
期号：3
页面范围：496-502
ISSN号：1005-0302
关键字：Dielectric loss; Magnetic loss; Spray granulation method; Impedance match
摘要：The microwave absorbents of Fe and C nanoparticles as magnetic loss and dielectric loss material respectively were composited with the polyvinyl alcohol (PVA) as binder by spray granulation method. The electromagnetic parameters of Fe and C composite particles were analyzed by vector network. The complex permittivity and magnetic permeability of Fe and C composite particles matched well with increasing C nanoparticle content, and then the microwave loss property was improved. A minimum reflection loss (RL) of 42.7 dB at 3.68 GHz for a composite with 4.6 mm in thickness can be obtained when the content ratio of the C nanoparticles, the modified Fe nanoparticles and the PVA is 21:49:30 (Sample 3). (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
发表时间：2018-03-01