Polycrystalline iron fiber absorbing material

Polycrystalline iron fiber is a commonly used suction material with high absorbance performance and a wide range of absorbing frequency range.

1. The suction mechanism of polycrystalline iron fiber: Polycrystalline iron fiber, as a suction material, is mainly through the internal tissue structure and electromagnetic properties of the material to achieve the absorption effect. Polycrystalline iron fiber has high conductivity and magnetic conductivity, so it can effectively absorb electromagnetic waves, convert it to thermal energy and emit out, so as to achieve the purpose of suction.

2. Preparation method of polycrystalline iron fiber: The preparation method of polycrystalline iron fiber mainly includes the solution-gel method, thermal impregnation method, and electrochemical deposition method. Among them, the solid-gel method is the most commonly used method. This method first dissolves metal salt in an appropriate solvent to form a solid, and then controls the gel reaction by controlling the conditions, and finally a porous gel body is formed. Next, the gel body is dry and sintered to get polycrystalline iron fiber.

3. The characteristics and performance of polycrystalline iron fiber: The polycrystalline iron fiber has very low reflectivity and absorption rate, which can achieve a broadband absorption performance. At the same time, polycrystalline iron fiber has high physical strength and corrosion resistance, which can be used under different environmental conditions. In addition, polycrystalline iron fiber also has good processes, which can be processed by cutting, grinding and suppression as needed.

4. The application field of polycrystalline iron fiber: polycrystalline iron fiber is widely used in military, aerospace, electronic communication and radar fields. In terms of military, polycrystalline iron fiber can be used to make stealth materials and improve the hidden performance of military equipment. In the field of aerospace, polycrystalline iron fiber can be used to make the shell of aircraft and satellites and reduce the reflection of radar signals. In the field of electronic communication, polycrystalline iron fiber can be used as the base material of the suction antenna to reduce the interference of other electronic equipment by electromagnetic radiation.