Sandwich panels consisting of a foamed metal core and two metal face sheets can be fairly easily obtained by bonding the face sheets to a piece of foam with adhesives. Alternatively, if pure metallic bonding is required, conventional sheets of metal—aluminum or steel—are roll-clad to a sheet of foamable precursor material. 15, 16 The ...
Composite Metal Foam, or CMF, the newest advancement in armor technology Posted by DemonKA3268 on 4/9/18 at 1:57 pm 2 0 This could be interesting, would like …
A metallic foam or ceramic foam is a cellular structure consisting of a solid metal or ceramic material containing a large volume fraction of gas-filled pores. The pores can be sealed (closed-cell foam) or can form an interconnected network (open-cell foam).
Apr 09, 2016· Engineers are developing new materials with the potential to offer unprecedented protection from bullets and crashes. Take a new composite metal foam, that absorbs most of …
Mar 26, 2018· Abstract: Composite metal foam (CMF) is known for its high strength to density ratio and extraordinary energy absorption capabilities. In this study, stainless steel CMF panels are manufactured and tested against high explosive incendiary (HEI) rounds to study their resistance against explosive blast pressure and the resulting fragments.
Apr 12, 2019· Metal Foam Can Be Used For Bulletproof Purposes, Protecting Life and Property Composite metal foams contain odd properties, enabling them to stop even the most powerful objects. In order to test it, researchers used 7.62 x 63 millimeter M2 armor piercing projectiles and fired them based on the standards the National Institute of Justice laid out.
Oct 21, 2019· An innovative solution was explored in this work by infusing stainless steel composite metal foam (SS CMF) with a hydrophobic epoxy resin system. S …
Apr 11, 2016· The shield was comprised of boron carbide ceramics as the strike face, with composite metal foam (CMF) as the bullet kinetic energy absorber layer and Kevlar panels as backplates. To test its ...
Apr 08, 2016· Composite metal foam is a new ultra-light, high strength material that is dotted with gas-filled 'pores' that form a network of cells. It is created by combining hollow metal spheres with a metal ...
A cross-section of metal foam reveals something that resembles a "steel sponge," with its gleaming surface dotted with a myriad of hollow spheres. It's that unique structure—and its composite of metal foam mixed with stainless steel—that makes steel-CMF shine. "It works like heavy-duty bubble wrap," Rabiei explained to Army Times ...
Sep 19, 2017· Composite metal foam, however, contains a significant percentage of hollow spheres. When struck with a bullet, the spheres collapse, similar to bubble wrap, and adsorb the bullet's energy.
Jul 01, 2015· Steel–steel composite metal foam (S–S CMF) panels were manufactured using hollow spheres embedded in a stainless steel powder matrix and processed using powder metallurgy technique previously developed,,,, .Hollow steel spheres with 2 mm outer diameter and 200 μm sphere wall thickness were manufactured by Hollomet in Dresden, Germany using lost core technique, . …
Oct 21, 2019· The leading edges of aircraft wings have to meet a very demanding set of characteristics. New research shows that a combination of steel composite metal foam (CMF) and epoxy resin has more desirable characteristics for use as a leading-edge …
Mar 31, 2018· The goal of the test was to find out the composite metal foam's capabilities in vehicle protection roles. Composite metal foam with different size pores They fired a 23mm HEI round at a 2.3mm thick aluminum strike plate with 9.5mm and 16.75mm steel-CMF plates located at an 18″ distance behind the strike plate.
Composite metal foam (CMF) consists of hollow, metallic spheres—made of materials such as stainless steel or titanium—embedded in a metallic matrix made of steel, aluminum, or metallic alloys.
Mar 16, 2017· Composite metal foam (CMF) is a lightweight material made by hollow metal spheres stacked tightly together creating dispersed porosities, that are completely surrounded by a bulk metallic body. CMF has a unique set of properties and has found many uses in multiple engineering fields.
Lightweight steel/epoxy resin composite metal foam (CMF) aircraft wing leading-edge material repels water and insects better than aluminum, research from North Carolina State University (NC State) shows. "We call our hybrid material infused CMF," says Afsaneh Rabiei, corresponding author of a paper on the work and professor of mechanical and aerospace engineering at NC State.
Mar 26, 2017· Super Material: Composite Metal Foam 7 Sage Labs. Loading... Unsubscribe from 7 Sage Labs? ... Metal Foam Armor That Shatters Bullets on Contact - Duration: 1:00. Slate 18,395 views.
Mar 15, 2017· Introduction: Composite metal foam (CMF) is a novel light weight material created at North Carolina State University. The material is made of metallic hollow spheres closely packed together and the empty spaces in between them filled with a metallic matrix through either casting (of a molten metal) or sintering (of a powdered metal). ...
A new kind of metal foam has been developed by researchers at North Carolina State University and this composite shows some incredible promise. "We were looking for a light and cheap metal with a low melting point to cast around steel hollow spheres, a metal easy to play with," said Dr. Afsaneh Rabiei, professor at the Mechanical and ...