1. Traditional shielding materials (such as conductive cloth, conductive tape), etc., are a type of conductive shielding product. Its shielding method is reflective shielding, that is, the conductor has a reflection effect on electromagnetic waves. The more conductive the lower the metal conductor, the lower the electromagnetic wave. The stronger the reflections of silver, copper, aluminum, etc., because this conductive shielding material can only suppress electromagnetic waves to minimize electromagnetic radiation and interfere with other components, but it does not completely eliminate electromagnetic radiation. With the rated frequency of electronic product chips The radiation is getting higher and higher, so there must be new shielding materials to solve this problem. The generation of absorbing materials is an advanced shielding method, which can absorb and convert electromagnetic wave radiation to the largest extent. In the clean electromagnetic space, the absorbing material uses nickel-iron alloy with very high resistivity as the raw material. This alloy has high permeability and resistivity, and can quickly absorb clutter to achieve the purpose of shielding. It is an advanced Shielding materials and magnetic functional materials.
2. The absorbing material is a magnetic functional material with nickel-iron alloy as the base material, so let's take a look at the common resistivity of the material.
Material resistivity (Ω m)
(1) Silver 1.65 ×10-8
(2) Copper 1.75 ×10-8
(3) Gold 2.40×10-8
(4) Aluminum 2.83 ×10-8
(5 Tungsten 5.48 ×10-8
(6) Iron 9.78 ×10-8
(7) Platinum 2.22 ×10-7
(8) Manganin 4.4 ×10-7
(9) Mercury 9.6 ×10-7
(10) Constantan 5.0 ×10-7
(11) Nickel alloy 1.0 ×10-6
(12) Fe-Cr-Al alloy 1.4 ×10-6
(13) Inconel 1.6 ×10-6
Absorbing Material:https://www.goodsmaterial.com/
