Effect of aluminum substitution on microwave absorption properties of barium hexaferrite

2005 ◽  
Vol 98 (10) ◽  
pp. 103905 ◽  
Author(s):  
Jianxun Qiu ◽  
Qiguo Zhang ◽  
Mingyuan Gu ◽  
Haigen Shen
Keyword(s):  
Microwave Absorption ◽  
Barium Hexaferrite ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Aluminum Substitution

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

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
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.

The role of MnO2/polyaniline/Y-type barium hexaferrite (Al2Y, Mg2Y, and Ni2Y) nanoparticles in the improvement of the microwave absorption properties of polyester coatings

2021 ◽  
Vol 45 (6) ◽  
pp. 3252-3262
Author(s):  
Sina Rahmani ◽  
Mir Saeed Seyed Dorraji ◽  
Seyyedeh Fatemeh Hosseini ◽  
Alireza Amani-Ghadim ◽  
Mohammad Hossein Rasoulifard ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Barium Hexaferrite ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Effective Absorption

The prepared nanocomposite can be suggested as a promising microwave absorbent with the highest effective absorption at the lowest thickness.

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