Metal Foam - Innovation Nation

The video discusses a composite metal foam created by Professor Afsana Rabi with NSF support. This foam is stronger than other foams due to its structured design of hollow spheres bonded by a matrix. It can withstand significant pressure without failing, making it ideal for applications like car bumpers, where it can reduce crash impact. The video concludes with the potential of this innovation to change the world.

What makes the composite metal foam stronger than other foams?

• It is made of solid metal.

• It has a random structure.

• It contains evenly spaced hollow spheres linked by a matrix.

• It is filled with liquid.

How does the bonding of spheres affect the strength of the composite metal foam?

• It increases the foam's strength.

• It makes the foam heavier.

• It reduces the foam's flexibility.

• It makes the foam more brittle.

What happens when the composite metal foam is squeezed as hard as a sponge?

• It does not fail.

• It becomes denser.

• It fails to return to its original shape.

• It breaks easily.

How could the composite metal foam change the impact of a car crash?

• It would make a high-speed crash feel like a low-speed fender bender.

• It would have no effect on crashes.

• It would make crashes more severe.

• It would increase the speed of the crash.

What is the potential impact of the composite metal foam on the world?

• It could reduce the need for safety regulations.

• It could make vehicles heavier.

• It could change the world by improving safety.

• It could increase the cost of manufacturing.