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applications of metal foam(Al,Mg)


The performance characteristics and applications of porous foam metal materials have been widely studied since their inception. As a structural material, porous foam metal exhibits lightweight properties and high strength-to-weight ratio. On the other hand, as a functional material, it possesses various physical properties such as porosity, vibration damping, damping, sound absorption, sound insulation, heat dissipation, shock absorption, and electromagnetic shielding. Consequently, porous foam metal materials have found increasingly extensive applications in both general industrial and high-tech fields, both domestically and internationally.Roll Type Ultra-Thin Foam Copper 1 (2)


The specific applications are as follows: utilizing its vibration reduction and damping performance, it can be used as a buffer or absorber. For example, it can be used in the landing gear of spacecraft, safety pads for elevators, various packaging boxes, especially air transport packaging boxes, machine tool beds, bases, damping rings to reduce gear vibration and noise, and high-speed grinding machine energy-absorbing liners. This application can also be seen as the application of porous foam metal for sound absorption and insulation. With its excellent

electromagnetic shielding, lightweight, and excellent sound absorption and insulation performance, it has been used to manufacture soundproof panels for the construction industry, electronic instrument casings, and electromagnetic shielding rooms. In addition, it has been applied in chemical filters, gasification processors for purifying water, oil-bearing bearings for automatic refueling, and scented decorations due to its high porosity. In the aerospace industry, it is used to manufacture floatation devices, sports equipment (such as sleds), and corresponding parts for aerospace vehicles due to its lightweight and high specific strength. Manufacturing aircraft using porous foam metal materials not only offers the benefits of reducing weight and saving energy but also presents an additional advantage. This advantage lies in the ability to allow the aircraft to return to the Earth’s atmosphere and undergo rapid and complete combustion, transforming into gas, thus reducing space debris, when the space station completes its mission. It can also be used in manufacturing radiators due to its great heat dissipation performance. Another typical application is using its shock absorption, vibration reduction, and damping performance, it has been used to manufacture automotive and train side and front impact components, as well as military armored vehicle impact protection materials.

Nickel Foam (6)

With the increasing demand for quietness and lightness in naval vessels, the requirements for materials are constantly being raised, especially for ultra-lightweight structures and multifunctional materials. As a new type of multifunctional material, foam aluminum has the characteristics of lightweight, high specific stiffness, sound absorption, thermal insulation, shock resistance, impact resistance, excellent electrical performance, and recyclability. It has huge application prospects in the fields of naval, land, and air weapons and equipment, as well as civil use. The applications of foam aluminum as a structural material include energy absorption materials and damping materials, sound absorption materials, electromagnetic shielding materials, heat exchange materials, and insulation materials, as well as filtering materials. Utilizing itslow density, high stiffness, sound insulation performance, thermal insulation performance, fire resistance, energy absorption performance, and non-toxic gas release during heating of foam aluminum, it is widely applicable in the rail transportation industry, such as insulation, sound insulation, energy absorption, and fire and poison prevention components in carriages and containers. The sound insulation performance, sound absorption performance, and energy absorption performance of foam aluminum can be used in the environmental protection field of urban construction, such as sound barriers. In the automotive manufacturing industry, it can be used in energy absorption components and sound absorption components, such as bumpers and mufflers. With its low density, high stiffness, and low thermal conductivity, foam aluminum is widely used in energy-saving buildings, such as thermal insulation walls, fire-resistant and thermal insulation doors, and energy-saving mobile houses. The sound absorption and anti-magnetic properties of foam aluminum can also be applied in the military industry, such as armored vehicles and submarine shell sandwich panels. In the fields of mechanical manufacturing and aerospace industry, foam aluminum can be used as insulation, sound insulation, shock absorption, and energy absorption components. This functional material has already been industrialized in developed countries such as the United States, Japan, Canada, Germany, and South Korea. In China, dozens of units are researching the industrial production of foam aluminum, and some have already invested in large-scale production, producing valuable products.

Magnesium foam is a composite material consisting of a metal phase and pores, which possesses both the characteristics of the continuous phase metal magnesium and the dispersed phase pores. Magnesium foam materials have a wide range of applications in the aviation industry, including filling for civil aircraft wings, sound insulation materials between engines and cabins, aircraft shell materials, thermal insulation materials, vibration damping materials, impact energy absorption materials, and electromagnetic shielding materials. As a porous metal, magnesium foam has unique structural characteristics that give it incomparable advantages as both a structural material and a functional material compared to solid metals. The special properties of magnesium foam are mainly manifested in sound absorption, damping, energy absorption, explosion-proof impact resistance, biomimetic performance, and electromagnetic shielding performance. These special properties make magnesium foam valuable in various fields. By utilizing its sound absorption performance, magnesium foam can be used to produce sound-absorbing materials such as sound-absorbing panels in tunnels and noise barriers in factories, as well as sound insulation panels for torpedoes in the defense sector. In the military industry, magnesium foam can be used to manufacture tank gearboxes, transmission boxes, and jet control panel casings. In the mechanical industry, it can be used as machine tool bearing components to reduce instrument vibration noise, improve their service life, and enhance the accuracy of instruments and meters. Magnesium foam has good biocompatibility, mechanical compatibility, and biodegradability. It also has a pore structure that promotes cell growth. Therefore, magnesium foam can be used as an ideal biomimetic material to replace human bones. Currently, the bottleneck in the use of biomimetic materials lies in solving the problem of poor corrosion resistance in human tissues. The commonly adopted method is to modify the surface of magnesium foam to make it an effective biomimetic material that can be implanted in the human body. The energy absorption and impact resistance of magnesium foam make it a promising seismic material for use in the packaging of precision instruments or the manufacturing of buffers for automobile body shells. Magnesium foam has strong absorption and reflection capabilities for electromagnetic waves, making it an excellent electromagnetic shielding material. Therefore, it can be used to produce outer casings for precision electronic instruments.

Copper Foam 1 (8)

Picture of Lu


Our materials research team from Tsinghua University postdoctoral researcher lin and Harbin Institute of Technology researcher Mu, Nanjing University of Technology researcher Wei, they share their expertise in foam metal materials article.

About HGP

WE were established in 2003, located in the Gaoxin Zone of Guangdong-Guangxi Cooperation Special Experimental Zone, covering an area of 70 mu, with a plant of about 30,000 square meters, with more than 170 employees, is an advanced new material technology enterprise integrating research and development, production and sales.

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