期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 495, 期 1, 页码 254-259出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.01.143
关键词
Composite materials; Electromagnetic properties; Microwave absorption properties
资金
- National Natural Science Foundation of China [50972014, 50872159]
- National Defense Research Projects of China [A2220061080]
Basalt fiber/nickel core-shell heterostructures with different thicknesses of nickel shells are fabricated successfully. The electromagnetic parameters of basalt fiber/nickel-paraffin composites ranging from 8.2 to 12.4 GHz (X band) are measured for investigating the microwave absorption properties. The electromagnetic parameters of basalt fiber/nickel are several times higher than those of naked basalt fibers due to the formation of the core-shell interface. The measured results indicate that effective electromagnetic match is realized in the whole X band. The values of complex permittivity and permeability of basalt fiber/nickel increase monotonically with the increasing thicknesses of the nickel shells. It is interesting that the reflection loss of basalt fiber/nickel do not show the monotonic character with the increasing thicknesses of the nickel shells. The basalt fiber/nickel with the nickel shell thickness about 300 nm shows the strongest reflection loss. The value of reflection loss is more than 15 dB in the whole X band and reaches 40 dB at 8.9 GHz, while the naked basalt fibers hardly exhibit any microwave absorption. The excellent microwave absorption properties of the basalt fiber/nickel core-shell heterostructures are attributed to the good electromagnetic match between the dielectric loss and magnetic loss. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据