Magnetic Absorbents: A Revolutionary Breakthrough in the Field of Absorbing Coatings

introduction:

With the rapid development of modern technology, radar reconnaissance technology is becoming increasingly mature, and stealth absorbing materials have become a research hotspot in both military and civilian fields.antiradar coatingsAs a key component of stealth technology, its performance directly affects the stealth effect. The research progress of magnetic absorbers, as the core component of absorbing coatings, directly affects the development and application of absorbing coatings. This article will delve into the research progress of magnetic absorbers for absorbing coatings and look forward to their future development directions.

1、 Research Background and Significance of Magnetic Absorbents

Magnetic absorbers are an important component of absorbing coatings, which can reduce the radar cross-sectional area of targets by absorbing and scattering radar waves, thereby achieving stealth effects. The research on magnetic absorbers is not only related to military security, but also widely used in civilian fields such as aerospace, communication, electronics, etc. Therefore, in-depth research on the performance and application of magnetic absorbers is of great significance for promoting the development of stealth technology.

2、 Research progress of magnetic absorbers

1. Ferrite absorbing coating

Ferrite absorbing coatingIt is one of the early widely used stealth materials. Due to its low price and good absorption performance, it has excellent absorption performance in the range of meter to centimeter waves, and is therefore widely used in military and civilian fields. However, pure ferrite is difficult to meet the requirements of high-performance radar wave absorbing materials. To this end, researchers have achieved effective control of electromagnetic parameters by dispersing ferrite powder in non-magnetic materials to create composite ferrites.

2. Carbonyl iron absorber

Carbonyl iron is a metal magnetic micro powder absorber with advantages such as high microwave permeability, small matching thickness, and good thermal stability. However, traditional carbonyl iron materials have poor corrosion resistance and are prone to electrochemical corrosion problems such as oxygen corrosion in humid, hot, and marine environments, leading to aging and failure of radar absorbing coatings. To address this issue, researchers have successfully improved the corrosion resistance of carbonyl iron through surface modification, making it more suitable for use in harsh environments.

3. Magnetic fiber absorbent

Magnetic fiber absorbers have significant advantages such as shape anisotropy and good adjustability of electromagnetic properties, making them a research hotspot in the field of absorbing coatings in recent years. Compared with traditional powder absorbents, magnetic fiber absorbents are lighter and have stronger absorption properties, which better meet the requirements of high-efficiency absorbents. In addition, the nanoscale effect brought by the nanoscale of magnetic fibers provides the possibility to broaden their application range. At present, researchers are actively exploring the development direction of multi-component composites of magnetic fiber absorbents to improve their comprehensive performance.

3、 Future Development Direction and Prospects

With the continuous development of stealth technologyMagnetic absorbers for absorbing coatingsThe performance requirements are also increasing. In the future, research on magnetic absorbers will pay more attention to the development of diversification, compounding, and low dimensionality. Meanwhile, with the continuous advancement of nanotechnology, new absorbents such as magnetic nanofibers will also become research hotspots. Through continuous innovation and research and development, we are confident in bringing more revolutionary breakthroughs to the field of absorbing coatings and driving the development of stealth technology to new heights.