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吴爱民
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副教授   博士生导师   硕士生导师

任职 : 辽宁省能源材料及器件重点实验室副主任

性别: 男

毕业院校: 大连理工大学

学位: 博士

所在单位: 材料科学与工程学院

学科: 材料物理与化学. 材料表面工程

办公地点: 新三束4#楼311室

联系方式: 0411-84706661-101

电子邮箱: aimin@dlut.edu.cn

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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.

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