What properties does Nickel Foam have?

Sound absorption - Nickel Foam's porous structure makes it an excellent sound-absorption material.
Fire resistant - Nickel Foam can withstand temperatures in excess of 1100 degrees Celsius and is difficult to burn at such high temperatures.

The material has a surface area per mass of about 0.25, which is 1/30 of iron, as well as a surface density of around 350g/m2 and a porosity of 93% to 95%.

Nickel Foam is very malleable and can be cut, bent, and pasted.

Electromagnetic shielding - A 90dB electromagnetic wave can be shielded through a relatively thin layer of Nickel Foam.