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Radar wave absorption absorbing coating and preparation method thereof

A technology of radar waves and coatings, applied in the field of coatings, can solve the problems of limited application range, narrow frequency band, low efficiency, etc., and achieve the effect of widening the frequency range of absorbing waves, reducing specific gravity and improving absorbing performance

Inactive Publication Date: 2012-02-22
朱恩灿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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Examples

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)O9-δ(BCN18) powder from the citric acid complex solution containing Ba, Ca, Nb, and heat the powder containing Ba: Ca: Nb: citrtc acid=3: 1.18:1.82:12 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 the ratio of raw materials for preparing a radar wave absorption absorbing coating and a preparation method for the same. The radar wave absorption absorbing coating is prepared by 25 to 55 parts of nanometer gadolinium-ferrite, 0.03 part to 2.5 parts of metallic cobalt or manganese, 10 to 35 parts of carbonyl iron and 25 to 75 parts of an adhesive. The nanometer gadolinium-ferrite is prepared by using the methods of citrate sol-gel and high temperature cauterization and mainly comprises ferromagnetic nanometer wafer-like particles, hexaplanar ferrite, amorphous magnetic fibers and a particle film. In utilization, the radar wave absorption absorbing coating provided in the invention has the advantages of a small thickness, a light weight, a wide absorption frequency band and high absorptivity.

Description

technical field [0001] The invention relates to a coating, in particular to a formulation and a preparation method of a coating 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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/32C09D7/12C09D175/04C09D163/00C09D133/00
Inventor 朱恩灿
Owner 朱恩灿
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