Composite metal foams (CMFs) are tough enough to turn an armor-piercing bullet into dust on impact. Given that these foams are also lighter than metal plating, the material has obvious implications for creating new types of body and vehicle armor – and that’s just the beginning of its potential uses.
Afsaneh Rabiei, a professor of mechanical and aerospace engineering at NC State, has spent years developing CMFs and investigating their unusual properties. The video seen here shows a composite armor made out of her composite metal foams. The bullet in the video is a 7.62 x 63 millimeter M2 armor piercing projectile, which was fired according to the standard testing procedures established by the National Institute of Justice (NIJ). And the results were dramatic.
“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,” Rabiei says. “To put that in context, the NIJ standard allows up to 44 millimeters indentation in the back of an armor.” The results of that study were published in 2015.
But there are many applications that require a material to be more than just incredibly light and strong. For example, applications from space exploration to shipping nuclear waste require a material to be not only light and strong, but also capable of withstanding extremely high temperatures and blocking radiation.
Last year, with support from the Department of Energy’s Office of Nuclear Energy, Rabiei showed that CMFs are very effective at shielding X-rays, gamma rays and neutron radiation. And earlier this year, Rabiei published work demonstrating that these metal foams handle fire and heat twice as well as the plain metals they are made of.
Now that these CMFs are becoming well understood, there could be a wide array of technologies that make use of this light, tough material. Armor, if you’ll forgive the pun, barely scratches the surface.
The Latest on: Composite metal foams
via Google News
The Latest on: Composite metal foams
- Flexible Polymer Foam Market Emerging Trends and Top Key Vendors to Watch- Europur, VPC Group, Eversoft Fiber & Foam in 2017-2027 on April 12, 2019 at 8:09 pm
Flexible polymeric foams can be prepared in any form and shape, such as boards, blocks, slabs, molded shapes or in composite forms, such as metal, fabric, wood, papers, etc. Flexible polymer foams can ... […]
- The new Porsche 911 - Innovations in body design on April 11, 2019 at 2:13 pm
The composite component consists of three elements: a so-called Organo sheet, additional die-cast ribs and a structural foam. Organo sheets are pre-fabricated ... The A-pillar itself consists of super ... […]
- Metal foams capable of shielding radiation developed on March 30, 2019 at 5:00 pm
New York, July 19 (IANS) Lightweight composite metal foams are effective at blocking X-rays, gamma rays and neutron radiation and are capable of absorbing the energy of high impact collisions, says a ... […]
- From toxic waste to green cars on March 23, 2019 at 5:00 pm
NYU (US) — Millions of tons of toxic waste could be kept out of landfills by using it to create lightweight composite metal foams for use in automotive and consumer products. More than 70 million tons ... […]
- Syntactic and Composite Foams III Conference on December 22, 2018 at 3:53 pm
... provide a continued forum for discussions in this rapidly growing field of syntactic foams and composite foams. Syntactic foams and rigid polymer, metal, and ceramic foams containing a reinforcing ... […]
- Composite epoxy introduces graphene foam for strength and conductivity on November 15, 2018 at 3:25 am
and the composite becomes harder to process. The Rice solution replaces metal or carbon powders with a three-dimensional foam made of nanoscale sheets of graphene. The Tour lab, in collaboration with ... […]
- Hybrid foam combines strengths of wood and metal on October 1, 2018 at 10:28 am
Back in 2014, we heard how scientists from Germany's Fraunhofer Institute for Wood Research had developed a wood-based foam that could be used as eco-friendly insulation. Now, they've combined it with ... […]
- The United States' Next Tank Could Be Protected by 'Steel Foam' on March 28, 2018 at 11:29 pm
Researchers have discovered that composite metal foam offers greater protection than traditional armor steel plate at a third of the weight. The discovery has broad implications for armored vehicles, ... […]
- Metal foam stops bullets without cracking on September 19, 2017 at 2:01 pm
Foam might not seem a likely way to stop a high-speed bullet, but a North Carolina researcher has developed a composite metal foam that stops bullets on contact. Afsaneh Rabiei, a professor at North ... […]
- Composite Metal Foam Shatters Bullets on Impact on May 24, 2017 at 1:56 am
Researchers at NC State University have developed composite metal foams that are strong enough to shatter bullets on impact, making them applicable for new types of body and vehicle armor, among a ... […]
via Bing News