Body armor made of nanostructured carbon material. Free Technical Library News

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Bulletproof vest made of nanostructured carbon material

01.07.2021

Light weight and thin are two desirable indicators when it comes to materials used for the production of bulletproof vests and other protective equipment. Researchers have made impressive strides in this area, using the latest advances in nanotechnology and drawing inspiration from "naturally occurring technologies" such as the structure of the shells of some marine molluscs.

The breakthrough in this area is a new material developed by materials scientists at the Massachusetts Institute of Technology (MIT), which outperforms materials such as Kevlar and steel in many basic parameters.

The starting point for the manufacture of a new material is a light-sensitive polymer, in the volume of which, with the help of laser light, a nanolattice with an ordered regular structure was formed. After creating the lattice, this material was placed in a high-temperature vacuum chamber, where the polymer was transformed into a lightweight carbon material with a given structure.

To test the new material and measure the values of its key parameters, the researchers used a kind of plasma gun, in which an expanding cloud of plasma gas was created by laser light, pushing projectile particles towards a target made of material. Gold-coated glass particles and silicon particles were used as projectiles, and adjusting the duration and power of the laser pulses made it possible to shoot these particles at a speed of 40 to 1100 meters per second. And to register the consequences of "shooting" with such shells, high-speed cameras were used.

The new material was able to absorb and dissipate impact energy more efficiently than steel, aluminum and Kevlar of comparable thickness and weight. And now the new material has every chance of becoming the basis of the next generation of personal protective equipment, which is lighter and more effective than similar products made from traditional materials.

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Other advantages - from a great height, the noise of the blades does not reach the ground, the towers do not spoil the landscape, and the energy is 65% cheaper than from a conventional ground-based windmill. Electricity is supplied to the ground through cables, which also serve to hold the unit in place.

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