Metal foam obliterates bullets into dust on impact (Video)

Metal foam obliterates bullets into dust on impact (Video)

A video has been released showing a bullet being obliterated into dust on impact when it hits a metal foam.

The experiment was performed by researchers from NC State, led by Afsaneh Rabiei. It saw a M2 armor-piercing projectile—0.3 inches in diameter—being fired at a lump of metal foam. Rabiei explained to PhysOrg what happened:

“We could stop the bullet at a total thickness of less than an inch, while the indentation on the back was less than 8 millimeters. To put that in context, the National Institute of Justice standard allows up to 44 millimeters indentation in the back of an armor.”
Which, wow.

These metal foams can be made in many different ways. Some are manufactured by bubbling gas through molten metal, while others cast metallic alloy around hollow metal spheres to provide voids.

Either way, metal foams—which have existed in one form or other for decades now–seem to finally be coming of age.


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1 Comment

  1. Ron McCune

    April 9, 2016 at 5:32 am

    There are many uses for this discovery. Police and soldiers and their dogs can wear full body uniforms or trench coats made of this material as well as carry shields and wear helmets made of this material. Police and soldiers would then be able to walk up to criminals or enemies and tell them to surrender or kiss their butts goodbye! All police and military vehicles could be made of this material. All nuclear material could be stored in this material. Dwellings could have a layer of this material on it to prevent heat and cold from entering the dwelling. Aircraft seats, military and police vehicle seats could be made of this material that folds over passengers when triggered to protect passengers. Forest fires and home fires could easily be put out with this material. If I had more time i’m sure I could come up with more uses for this material. It surely will go down as one of the greatest discoveries in recent years!

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