Metal Foam - Science Nation

Afsana Rabi, a mechanical and aerospace engineer, has developed a composite metal foam that is lighter and stronger than traditional materials. This innovative material, made of hollow steel spheres within an aluminum matrix, offers significant advantages over other metal foams. It has potential applications in building construction, automotive safety, military armor, and medical implants. Rabi's work is supported by the National Science Foundation, and she actively encourages young students to explore engineering, aiming to inspire the next generation of innovators.

What is the primary advantage of the composite metal foam developed by Afsana Rabi?

• It is cheaper to produce than other materials.

• It is lighter than aluminum and stronger than standard systems.

• It can be used in electronic devices.

• It is biodegradable.

What makes composite metal foam stronger than other metal foams?

• It is made entirely of aluminum.

• It has a uniform cell structure with bonded spheres.

• It contains more air pockets.

• It is denser than other foams.

How does composite metal foam improve automotive safety?

• It makes the car more aerodynamic.

• It reduces the weight of the car.

• It increases fuel efficiency.

• It absorbs impact, reducing the felt speed in a collision.

In which field is Afsana Rabi collaborating with the US military?

• Designing stealth technology.

• Improving body armor and combat vehicles.

• Developing new aircraft materials.

• Creating lightweight drones.

What is Afsana Rabi's approach to inspiring future engineers?

• She offers free online courses.

• She hosts engineering competitions.

• She writes engineering textbooks.

• She engages with grade school students to spark interest in engineering.