How to solve the problem of narrow stealth frequency band of electromagnetic protection absorbing coatings

1、 Introduction

2、 Multi material composite optimization

Advanced Institute (Shenzhen) Technology Co., Ltd. adopts an innovative approach of multi material composite. support Magnetic absorbing materials(such as carbonyl iron powder) and dielectric absorbing materials (such as silicon carbide) are mixed in a specific ratio in the research platinum brand electromagnetic protective absorbing coating. Carbonyl iron powder can effectively absorb the magnetic field energy of electromagnetic waves in the low frequency range, while silicon carbide loses electric field energy in the high frequency range. Advanced processes such as sol gel method are used to ensure uniform dispersion and good combination of materials, realize effective connection of low-frequency and high-frequency wave absorption performance, and significantly expand the stealth frequency band.

3、 Structural design innovation

1. Gradient structure construction
   The company designs gradient structures for platinum brand coatings. The outer layer uses high electrical loss materials to rapidly attenuate incident electromagnetic waves, the middle layer uses materials that combine magnetic and electrical losses to further absorb scattering, and the inner layer is a material that is tightly bonded to the substrate and has a certain absorption ability. By precisely controlling the spraying thickness and process parameters, electromagnetic waves are gradually absorbed and converted in the coating, reducing reflection and successfully expanding the stealth frequency range.
2. Multi layer structure combination
   Adopting a multi-layer structure design, each layer is made of materials with different electromagnetic parameters. For example, the high permeability material in the bottom layer absorbs low-frequency magnetic fields, while the middle layerComposite absorbing materialTo cope with the mid frequency range, the upper layer of high dielectric material is used to handle high-frequency electric fields. By utilizing the interaction of electromagnetic waves at the interfaces of various layers and preparing through processes such as physical vapor deposition, multi band resonant absorption is achieved, greatly expanding the stealth frequency band width.

4、 Fine process control

1. Dispersion process improvement
   In terms of process, a synergistic approach of ultrasonic dispersion and mechanical ball milling is adopted for treatmentAbsorberUltrasonic dispersion breaks down agglomeration through cavitation effect and refines material particle size through mechanical ball milling. Accurately controlling parameters such as ultrasonic frequency, power, ball milling time, and rotational speed allows the absorbing material to be uniformly dispersed to the nanoscale in the research platinum brand coating, improving overall absorption performance and indirectly expanding the stealth frequency band.
2. Improvement of solidification process
   Innovative curing process, adopting segmented curing. Firstly, solidify at a lower temperature to stabilize the distribution of absorbing materials and form preliminary electromagnetic structures; Gradually increase the temperature to complete deep curing. By precisely controlling the temperature, time, and environmental conditions at each stage, optimizing the internal microstructure of the coating, enhancing its ability to absorb and attenuate electromagnetic waves of different frequencies, and effectively expanding the stealth frequency band.

5、 Conclusion

Advanced Institute (Shenzhen) Technology Co., LtdSignificant achievements have been made in solving the problem of narrow stealth frequency band of research platinum brand electromagnetic protective absorbing coatings through multidimensional technological means such as multi material composite, structural design innovation, and fine process control. These measures not only enhance the electromagnetic protection performance of products, but also open up new paths for the development of electromagnetic protection absorbing coating technology, which is expected to promote its widespread application and further innovation in many fields such as military, aerospace, etc.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.