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What are the types and applications of stealth absorbing coatings

Author:admin   AddTime:2021-05-15

Radar stealth paint

When the electromagnetic wave emitted by the radar hits the metal material, it is easy to induce the same frequency electromagnetic current and establish an electromagnetic field, which radiates energy to the radar secondary. The research of radar stealth technology mainly focuses on two aspects: structural design and absorbing materials. In the design of material stealth, there are two key issues: one is how to make the incident wave enter the material to the maximum without being reflected by the surface; the other is how to make the electromagnetic wave entering the material be absorbed and attenuated quickly by the material. The radar stealth coating must eliminate the possibility of being surveyed by radar to the greatest extent. At present, there are many absorbing coatings used in various weapons and equipment, and a few are briefly introduced below.



Ferrite absorbing coating
Including nickel-zinc ferrite, manganese-zinc ferrite, lithium zinc ferrite, lithium titanium ferrite and barium ferrite, etc., it is the earliest developed and most widely used paint variety. Due to the strong absorption of ferromagnetic resonance and the dispersion efficiency of magnetic permeability, ferrite absorbing materials have the characteristics of strong absorption and wide frequency bandwidth, and are widely used in stealth fields. For example, iron is used on the SR-1 high-altitude reconnaissance aircraft in the United States. Oxygen absorbing coating. In recent years, the main ferrites studied are hexagonal ferrite and spinel ferrite.

Absorbing Material:https://www.goodsmaterial.com/

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