The new material is composed of aluminum and titanium hydride powder. The alloy is much more lighter than the custom aluminum, because it is like foam or sponge, full of holes.
The aluminum foam could cut the weight of ships by 30 percent.
The foam is lighter, so the ships made from it will be lighter, thus ships will be able to carry more load, it can go through shallower water and it can use less fuel, so that could eliminate the amount of CO2 emissions.
The new material is lighter than water and has a high stiffness. Within seconds a cube made from aluminum starts to inflate into the shape of a sponge under the impact of heat.