Metal foam is capable of screening different types of radiation Bashny.Net

"We were able to stop the bullet material with a thickness of less than 2.5 cm, with recess in the place of the bullet hit was a depth of less than 8 mm. For example, according to the standards of the National Institute of justice armor is good, even if after being hit remains in the notch 44 mm," says Rebiai.

Light composite metal foam effective at blocking x-rays, gamma rays and neutron radiation. The obtained results indicate that metal foam is promising for use in nuclear security, space exploration, and can find application in medicine.

 Composite metal foam (CMF) are strong enough to stop armor-piercing bullet, and when you strike to turn her into dust. Given that these foams are lighter than metal cladding, the material has obvious advantages for the creation of new types of body armor and car — and that's just the beginning of its potential use.

The experiment was conducted by researchers from the University of North Carolina under the leadership of the Awsan, Rebiai, Professor of Avia - and rocket production, which spent years in development and the study of unusual properties of the CMF. The material composite foamed metal in which the middle layer is a foamed metal (the energy absorber of hollow metal balls on the metal substrate) and outermost layer is made of ceramic. In the video, scientists shot armor-piercing bullet of 7.62 mm to the product of the composite and the result is impressive:



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The material according to its properties was better than most others in terms of protection against x-rays, although not as effective as lead.

"However, we are changing the composition of the metal foam to become even more effective than lead at blocking x-rays and first results are very promising," says Rebiai.

"Our foam is non-toxic and, therefore, easier to manufacture and disposal. In addition, unusual mechanical and thermal properties of these composites and their ability in energy absorption, make this material a good candidate for application in the field of nuclear energy". published

 

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Source: geektimes.ru/post/274114/