Effect of curing pressure on mechanical, dielectric and microwave absorption properties of carbon black (CB)-incorporated quartz glass fiber-reinforced polyimide composites

In order to deal with the more and more serious problem of electromagnetic radiation pollution, cement-based composites were prepared by introducing glass fiber into cement as through wave reagent and carbon black as absorbing reagent . Arched testing method were used to test the reflection losses in the frequency range of 2~18 GHz. The results showed that the absorption properties were improved in high frequency compared with the pure cement. The filling ratio of carbon black and glass fiber as well as the thickness of samples had influence on the absorption properties. The lowest reflection loss of-11.2 dB was obtained at 18 GHz of 9wt.% glass fiber and 5wt.% carbon black filled cement with thickness of 10mm. The new material can be used for building indoor electromagnetic radiation protection.

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Effects of carbon black (CB) and alumina oxide on the electromagnetic- and microwave-absorption properties of SiC fiber/aluminum phosphate matrix composites

Ceramics International ◽

10.1016/j.ceramint.2014.07.113 ◽

2014 ◽

Vol 40 (10) ◽

pp. 15849-15857 ◽

Cited By ~ 29

Author(s):

Feng Wan ◽

Fa Luo ◽

Hongyu Wang ◽

Zhibing Huang ◽

Wancheng Zhou ◽

...

Keyword(s):

Carbon Black ◽

Microwave Absorption ◽

Aluminum Phosphate ◽

Matrix Composites ◽

Absorption Properties ◽

Microwave Absorption Properties ◽

Sic Fiber ◽

Alumina Oxide

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Microwave absorption properties of Ag naowires/carbon black composites

Chinese Physics B ◽

10.1088/1674-1056/26/2/025207 ◽

2017 ◽

Vol 26 (2) ◽

pp. 025207 ◽

Cited By ~ 6

Author(s):

Hai-Long Huang ◽

Hui Xia ◽

Zhi-Bo Guo ◽

Yu Chen ◽

Hong-Jian Li

Keyword(s):

Carbon Black ◽

Microwave Absorption ◽

Absorption Properties ◽

Microwave Absorption Properties

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Microwave Absorption Properties of Double-Layer RADAR Absorbing Materials Based on Doped Barium Hexaferrite/TiO2/Conducting Carbon Black

Journal of Engineering ◽

10.1155/2014/468313 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5 ◽

Cited By ~ 6

Author(s):

Sukanta Das ◽

G. C. Nayak ◽

S. K. Sahu ◽

P. C. Routray ◽

A. K. Roy ◽

...

Keyword(s):

Titanium Dioxide ◽

Carbon Black ◽

Microwave Absorption ◽

Double Layer ◽

Reflection Loss ◽

Barium Hexaferrite ◽

Conducting Layer ◽

Absorption Properties ◽

Microwave Absorption Properties ◽

Absorbing Materials

In this report, we demonstrate microwave absorption properties of barium hexaferrite, doped barium hexaferrite, titanium dioxide and conducting carbon black based RADAR absorbing material for stealth application. Double-layer absorbers are prepared with a top layer consisting of 30% hexaferrite and 10% titanium dioxide while the bottom layer composed of 30% hexaferrite and 10% conducting carbon black, embedded in chloroprene matrix. The top and bottom layers are prepared as impedance matching layer and conducting layer, respectively, with a total thickness of 2 mm. Microwave absorption properties of all the composites were analyzed in X-band region. Maximum reflection loss of −32 dB at 10.64 GHz was observed for barium hexaferrite based double-layer absorber whereas for doped barium hexaferrite based absorber the reflection loss was found to be −29.56 dB at 11.7 GHz. A consistence reflection loss value (>−24 dB) was observed for doped barium hexaferrite based RADAR absorbing materials within the entire bandwidth.

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