According to New Atlas, researchers at the University of North Carolina, USA, after obtaining X-ray, gamma and neutron radiation coating, succeeded in developing a new bullet-proof material from needle foam. the type, which is equivalent in performance to a conventional bulletproof shell, but less than half.
This material is based on the so-called composite metal foam (CMF) . It is made by scouring through molten metal - resulting in a mixture of foam, which can then be cooled to form a light matrix and can easily arrange metal spheres. empty in it.
The resulting material is much lighter than conventional metal bulletproof armor, but has the same durability. Through testing, some cases of bullets did not even leave dents on the material.
According to Afsaneh Rabiei, professor of mechanical and aerospace engineering, the team leader, if covering materials on military armored vehicles will help reduce the weight of the vehicle and thus improve fuel efficiency.
In the future, researchers also want to go further to be able to produce CMF- based composite foam- based materials with higher efficiency by combining CMF metal foam with aluminum plates and ceramic plates. and adhesive materials, optimizing the adhesion and thickness of the ceramic, CMF and aluminum layers, can make the coating lighter and improve the performance of the final armor layer.