Ni Zn ferrite composite absorbing coating: preparation process and performance exploration

In today's world where electromagnetic waves are increasingly prevalent, stealth technology has become a common focus of attention in both military and civilian fields. Ni Zn ferrite as an important materialAbsorberIt plays a crucial role in stealth coatings. This article will delve into the preparation process and performance characteristics of Ni Zn ferrite composite absorbing coatings, providing reference for related research and applications.

1、 Preparation of Ni Zn Ferrite Composite Absorbing Coating

The preparation of Ni Zn ferrite composite absorbing coatings involves multiple key steps, including raw material selection, formulation design, mixing and grinding, forming and sintering, etc.

Raw material selection: The preparation of Ni Zn ferrite first requires the selection of high-purity metal oxides or salts such as nickel, zinc, and iron as raw materials to ensure the purity and performance of the final product.

Formula design: Based on the required electromagnetic wave absorption frequency band and intensity, the proportion of Ni, Zn, Fe and other elements is reasonably designed to adjust the electromagnetic parameters of the ferrite.

Mixing and Grinding: Mix the selected raw materials according to the designed formula and grind them evenly to lay the foundation for the subsequent molding and sintering processes.

Forming and sintering: Forming mixed materials, usually using methods such as pressing or injection molding. The formed sample undergoes high-temperature sintering, causing solid-state reactions between materials and forming a dense Ni Zn ferrite structure.

2、 Performance characteristics of Ni Zn ferrite composite absorbing coating

After the preparation of Ni Zn ferrite composite absorbing coating, its performance needs to be comprehensively tested and evaluated.

Electromagnetic wave absorption performance: Ni Zn ferrite, as a magnetic material, can effectively absorb electromagnetic waves in specific frequency bands, thereby reducing the propagation and reflection of electromagnetic waves and achieving stealth.

Band width: Ni Zn ferrite composite absorbing coating has a wide absorption band, which can maintain good absorption performance in a wide frequency range and adapt to different application needs.

Mechanical properties: Coatings need to have good adhesion, wear resistance, and corrosion resistance to ensure long-term performance stability in practical applications.

Environmental adaptability: Ni Zn ferrite composite absorbing coatings also need to exhibit good stability under different environmental conditions, including extreme environments such as high temperature, low temperature, and humidity.

3、 Application prospects and challenges

Ni Zn ferrite composite absorbing coatings have broad application prospects in military stealth, civilian electromagnetic protection and other fields. However, with the continuous advancement of technology and the increasing diversification of application requirements, there are also some challenges, such as further improving absorption performance, reducing costs, optimizing preparation processes, etc.

conclusion

Ni-ZnFerrite composite absorbing coatingAs an important absorbing material, its preparation process and performance research are of great significance. Through continuous exploration and innovation, we are expected to achieve more efficient and stable electromagnetic wave absorption in the future, promoting further development in stealth technology and electromagnetic protection.