Aluminum foam is lighter than water and still a stable, metallic material. It is an important material for lightweight constructions in industries and areas where there are high, but cost-effective requirements for the material and at the same time the energy factor should be optimised, for example, through a reduction in weight.

Cellular structures found throughout nature serve as an example. The cellular structure has closed pores, composed of stochastically distributed cavities. They are therefore not similar to a beehive structure, but rather are irregular like corals or bones. These material are very light, yet possess remarkable stiffness and stability properties, which can also be achieved with aluminum foam and result in advantages in different industrial sectors.