Wave-absorbing agent and preparation method thereof
A wave absorbing agent and ball milling technology, applied in the field of wave absorbing materials, can solve the problem that the low frequency wave absorbing performance of radar waves needs to be improved, and achieve the effects of realizing anisotropic characteristics, preventing the spread of electromagnetic information, and improving the magnetic permeability.
Pending Publication Date: 2020-04-28
LUOYANG INST OF CUTTING EDGE TECH +1
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Abstract
The invention provides a wave absorbing agent and a preparation method thereof. The preparation method comprises: uniformly mixing carbonyl iron powder and a C1-C4 alcoholic solution, and carrying outball milling to obtain a slurry; and heating and drying the slurry to obtain the wave absorbing agent. According to the invention, carbonyl iron powder is subjected to ball milling, so that the morphology is changed into a sheet structure with a certain width-thickness ratio from spherical particles, the anisotropy characteristic is achieved, the eddy current effect is inhibited, the magnetic conductivity is improved, and the wave absorbing performance is improved; compared with the wave absorbing performance of untreated carbonyl iron powder, the peak strength and the bandwidth of the treated carbonyl iron powder are obviously improved; and the method is simple in preparation process and easy to popularize, and can be widely applied to the fields of aerospace, antenna radar, aircraft stealth and the like.
Application Domain
Other chemical processes
Technology Topic
Carbonyl groupAirplane +9
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- Effect test(1)
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PUM
Property | Measurement | Unit |
Thickness | 0.5 ~ 1.5 | µm |
Thickness | 0.5 | µm |
Thickness | 1.0 | µm |
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