Wave absorbing integrated material of gradient-pore type structure
A gradient pore and pore technology, applied in the field of wave-absorbing materials, can solve the problems of not having wave-absorbing function and being unable to be used as structural parts, etc., achieving excellent wave-absorbing performance, reducing total reflection, and simple preparation
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[0008] An integrated wave-absorbing material with a gradient pore structure, consisting of a substrate, surface pores and a coating, is characterized in that the pores are uniformly present on the surface of the substrate, and the porosity increases as the distance from the surface of the substrate increases. The base material is a C / C composite material. The pore depth is 5 mm, the area ratio of the pores to the substrate surface is 30%, the pore shapes are parallel, vertical and curved, the pore cross section is circular, and the diameter is 0.5 mm. The coating is a multi-layer coating composed of silicon carbide and iron oxide, with a thickness of 30 μm.
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