Scientists have created a mixture that protects against impacts and explosions. She absorbs energy

The authors of a new work from the National Research Nuclear University MEPhI studied the properties

mixtures and found that they can quicklyabsorb the energy of external impulse influence. In addition, based on the material, as well as its quantity, you can control the force on the protected object.

The point is to use the feature of filling porous materials with non-wetting liquids: this is possible only if the pressure is higher than atmospheric pressure.

It is also important that liquid can flow out of the pores.material with decreasing pressure. The difference between the pressures at which the liquid flows into and out of the pores (pressure hysteresis) determines the fraction of the energy absorbed by such a mixture. The greater the difference, the greater the proportion of absorbed energy.

Anton Belogorlov, Associate Professor, Institute of Nanotechnologies in Electronics, Spintronics and Photonics (INTEL) NRNU MEPhI

As a result, the mixture heats up very slightly compared to the energy it absorbed, and accordingly, the temperature of the device does not increase. 

The authors note that other systems with similarthe principle of action suffer from overheating. The new model offers to combine high specific energy consumption - up to 20 J per gram of material, a certain amount of effort on the protected object, multiple use and low heat generation.

Now the authors are engaged in studying new materials for mixtures, as well as their properties.

Read more

Hawking was right, but sometimes wrong: the scientist's most daring ideas

Flu Medications May Help The Virus

A Chinese hypersonic missile orbited the entire globe. How is this possible and what is known about her