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A gradient pore structure absorbing integrated material

A technology of gradient pores and pores, which is applied in the field of wave absorbing materials, can solve the problems of not being able to be used as structural parts and having no wave absorbing function, and achieve the effects of excellent wave absorbing performance, reducing total reflection and simple preparation.

Active Publication Date: 2016-03-02
TAICANG PAIOU TECH CONSULTING SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, most of the materials now either only have the function of absorbing waves and cannot be used as structural parts, or they are used as structural parts without the function of absorbing waves.

Method used

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Effect test

Embodiment

[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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PUM

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Abstract

The invention discloses a wave absorbing integrated material of a gradient-pore type structure. The wave absorbing integrated material is composed of a base material, surface pores and a coating, and is characterized in that the pores are evenly formed in the surface of the base material, and the pore rate is increased along with the increase of the distance from the surface of the base material. The base material is carbon, or silicon carbide or a composite material formed by mixing the carbon and the silicon carbide, the depth of each pore is 1-10mm, the pores account for 5-40% of the area of the surface of the base material, the pores are parallel, or perpendicular to one another, or bent, the cross section of each pore is round, or irregular round, and the diameter of each pore is 0.1-1mm. The coating is a silicon carbide coating, or a silicon nitride coating, or an iron oxide coating, or a multi-layer coating or a trapezoid coating formed by two or more coatings, and the thickness of the coating is 10-100 micro meters. The wave absorbing integrated material has good wave absorbing performance and mechanical property.

Description

technical field [0001] The invention relates to a wave-absorbing material, in particular to a wave-absorbing integrated material with a gradient pore type mechanism. technical background [0002] After the end of World War II, stealth technology has been widely valued and researched as a major military technology. After the war, the world's military powers such as the United States, the Soviet Union, Britain, and France have all invested huge sums of money in research, and have made considerable progress. It can be said that the degree of development of stealth and anti-stealth technology has become one of the crucial factors for our army to win local wars under high-tech conditions in the future. Of course, in civilian applications, wave-absorbing materials are becoming more and more important. For example, at airports, aircraft flights are delayed due to electromagnetic interference; in hospitals, mobile phones often interfere with the normal operation of various electron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q17/00
Inventor 陈照峰汪洋
Owner TAICANG PAIOU TECH CONSULTING SERVICE
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