Metal foam is widely used in the biological field to make artificial bones; moreover, metal foam can also be used in the field of battery materials, greatly increasing the energy density of batteries. In addition, in the military field, foam metal is also widely used in the production of protective equipment such as bulletproof vests and inserts.

Metal foam is used in the manufacture of purification, filtration, catalytic supports, electrodes and other devices in petrochemical, aerospace, and environmental protection. Metal foam refers to a special metal material containing foam pores. Through its unique structural characteristics, foam metal has a series of good advantages such as low density, good thermal insulation performance, good sound insulation performance and ability to absorb electromagnetic waves. Chemical and other industrial development. The preparation of metal foam includes powder metallurgy and electroplating. The former is prepared by adding a foaming agent to the molten metal to obtain metal foam; the latter is replicated on the skeleton of polyurethane foam by electrodeposition.

It can be said that as a special metal material, metal foam has a very good application prospect. At present, in the scientific research community, foam metal is used in the military field; military bulletproof vests that can block armor-piercing bullets have been developed; at the same time, according to the characteristics of foam metal itself, foam metal is made into a lightweight stainless steel composite material, which is used for the protection of armored vehicles. The increase, while further reducing the weight of the armored vehicle itself. With the further development of science and technology, the field and scope of metal foam utilization are also further expanding. It can be said that it has a very wide range of applications, and the application prospect is also promising in the future.