Radar wave absorbing coating and preparation method thereof
A radar wave and paint technology, applied in the field of paint, can solve the problems of limited application range, high density, narrow frequency band, etc., and achieve the effect of broadening the frequency range of absorbing waves and improving the absorption efficiency.
Inactive Publication Date: 2016-01-20
孙典学
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AI Technical Summary
Problems solved by technology
The existing radar stealth materials represented by ordinary ferrite have shortcomings such as narrow frequency band, low efficiency, and high density, and the application range is limited to a certain extent. There is an urgent need to develop new wave-absorbing materials and corresponding stealth technologies.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] Embodiment 1 prepares citrate sol
[0023] Citrate sols are commercially available. Its preparation is to synthesize Ba3(Ca1.18Nb1.82)09-δ(BCN18) powder from a citric acid complex solution containing Ba, Ca, and Nb, and heat the powder containing Ba:Ca:Nb:citrtcacid=3:1.8 :1.82:12 solution, to obtain a light green sol, and continue to dry to obtain a yellow xerogel, which is citrate sol.
Embodiment 2
[0025] Mix and stir 95 grams of citrate sol and 5 grams of ferrite, and burn at 500°C for 4 hours to obtain high-purity composite nanoscale oxide powder.
Embodiment 3
[0027] Mix and stir 85 grams of citrate sol and 15 grams of ferrite, and burn at 750°C for 2 hours to obtain high-purity composite nanoscale oxide powder.
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Abstract
The invention discloses a raw material ratio and preparation method of a radar wave absorbing coating. The radar wave absorbing coating is prepared from 25-55 parts of nanoscale gadolinium-ferrite, 0.03-2.5 parts of metal cobalt or manganese, 10-35 parts of carbonyl iron and 25-75 parts of an adhesive. According to the radar wave absorbing coating and a preparation method thereof, the nanoscale gadolinium-ferrite is prepared by adopting a citrate sol-gel method and high-temperature burning and mainly prepared from ferromagnetic flaky nanocrystalline particles, planar hexagonal ferrite, amorphous magnetic fibers and granular films; the radar wave absorbing coating is small in thickness, light in weight, wide in absorption frequency band and high in absorptivity.
Description
technical field [0001] The invention relates to a paint, in particular to a formulation and a preparation method of a paint capable of absorbing radar waves. Background technique [0002] The technical methods for realizing the stealth performance of various military equipment are mainly two kinds of appearance stealth and material stealth. The shape stealth technology is more difficult, and it is easy to degrade the structural performance of the target, but the use of stealth material technology is relatively simple and easy. Radar wave absorbing coating has many advantages such as simple preparation, convenient construction, and not being limited by the shape of the workpiece, so it has become an ideal measure for equipment stealth. It can be widely used in the stealth and anti-electromagnetic interference of military aircraft, missiles, vehicles, and ship targets. And anti-electromagnetic pollution of civil products, anti-jamming of radar equipment and other fields. [...
Claims
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IPC IPC(8): C09D5/32C09D7/12C09D175/04C09D167/06C09D163/00C09D133/00
Inventor 不公告发明人
Owner 孙典学