Aluminum foam is a kind of ideal environmental protection material

which is not only light weight

energy absorbing

incombustible

innocently

corrosion protection and resisting high temperature

but also have good sound absorbing and insulating properties

exhibit a reduced conductivity for both heat and electricity. Furthermore

they can be integrated recycled. These significant advantages make aluminum foam apply in many fields. The vesicant for manufacturing aluminum foam which is the most important in all technology is so expensive that the price of aluminum foam is too expensive to apply in more extensive areas. Hence

the development of lower cost and high efficiency vesicant is the bottleneck of industrialization for aluminum foam.