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High temperature resistant radar and infrared compatible stealth coating and preparation method thereof

A high temperature resistant and infrared technology, applied in coatings, devices for coating liquids on surfaces, pretreatment of surfaces, etc., can solve difficult engineering applications, difficult to ensure uniform distribution of radar absorbent Quality stability and low reliability issues

Active Publication Date: 2021-04-06
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The single-type compatible stealth coating achieves high infrared reflection and high absorption of radar waves by adding radar absorbers to the infrared stealth coating, and by adjusting the structure and electromagnetic properties of the coating material, but it is difficult to guarantee the radar absorber in practical applications. Uniform distribution and repeatability of microstructure lead to low stability and reliability of coating quality, making it difficult to apply to engineering applications

Method used

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  • High temperature resistant radar and infrared compatible stealth coating and preparation method thereof
  • High temperature resistant radar and infrared compatible stealth coating and preparation method thereof
  • High temperature resistant radar and infrared compatible stealth coating and preparation method thereof

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Embodiment 1

[0057] A high temperature resistant radar and infrared compatible stealth coating of the present invention, the high temperature resistant radar and infrared compatible stealth coating is located on the metal substrate 6, the high temperature resistant radar and infrared compatible stealth coating is a layered structure, such as: figure 2 As shown, the metal bonding layer 5 (CoCrAlY alloy coating), the ceramic wave absorbing layer 4 (Al 2 O 3 -Ni series ceramic materials, Ni and Al 2 O 3 The mass ratio is 40:60), chip resistance type high temperature periodic structure layer 3, ceramic isolation layer 2 (8YSZ ceramic material) and infrared low emissivity frequency selective surface layer 1;

[0058] The chip resistance type high temperature periodic structure layer 3 is arranged with Bi and exhibits periodic characteristics. 2 O 3 -SiO 2 -B 2 O 3 It is a high-temperature resistance coating with low melting point lead-free glass as the binder phase and molybdenum disili...

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Abstract

A high temperature resistant radar and infrared compatible stealth coating and a preparation method thereof. The high-temperature-resistant radar and infrared-compatible stealth coating has a layered structure, which includes a metal bonding layer, a ceramic wave-absorbing layer, a chip resistive high-temperature periodic structure layer, a ceramic isolation layer, and an infrared low-emissivity frequency selective surface from the inside to the outside. layer; the chip resistance type high-temperature periodic structure layer is a high-temperature resistance coating exhibiting a periodic arrangement, and the infrared low-emissivity frequency selective surface layer is a high-temperature conductor coating exhibiting a periodic arrangement. The radar-infrared compatible stealth coating of the present invention effectively realizes the integration of radar and infrared stealth functions, has both radar and infrared stealth effects, and breaks through the shortcomings of traditional radar stealth coatings that are not compatible with infrared stealth functions and unsatisfactory wave-absorbing performance; Its preparation process method is simple and relatively mature, and it is easy for large-scale production and application.

Description

technical field [0001] The invention belongs to the field of high-temperature stealth materials, and in particular relates to a high-temperature resistant radar and infrared compatible stealth coating and a preparation method thereof. Background technique [0002] Stealth technology is a method that uses various technical means to change or reduce the detectable information characteristics of the target, so as to minimize or reduce the probability of being discovered by the opponent's detection system, thereby improving the survival and penetration capabilities of the target. Generally, stealth technology is mainly divided into two categories: shape stealth technology and stealth material technology. Stealth material technology is relatively easy and has little impact on the target's shape, aerodynamics, and strength performance. However, with the rapid development of multi-spectral detection technology, a single stealth technology can no longer meet the application requirem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B05D3/12B05D7/00B05D7/24
CPCB05D3/12B05D7/14B05D7/24B05D7/58
Inventor 黄文质刘海韬
Owner NAT UNIV OF DEFENSE TECH
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